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12202000020 = 22325723421049
BaseRepresentation
bin10110101110100101…
…11011111010010100
31011111101012211021200
423113102323322110
5144442203000040
65334443112500
7611243201040
oct132722737224
934441184250
1012202000020
1151a1790241
122446512730
1311c5c6c272
1483a7a1020
154b6372630
hex2d74bbe94

12202000020 has 144 divisors (see below), whose sum is σ = 44139513600. Its totient is φ = 2667760128.

The previous prime is 12202000003. The next prime is 12202000021. The reversal of 12202000020 is 2000020221.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 12201999966 and 12202000011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12202000021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 181545 + ... + 239504.

It is an arithmetic number, because the mean of its divisors is an integer number (306524400).

Almost surely, 212202000020 is an apocalyptic number.

12202000020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12202000020 is an abundant number, since it is smaller than the sum of its proper divisors (31937513580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12202000020 is a wasteful number, since it uses less digits than its factorization.

12202000020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421094 (or 421089 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

Adding to 12202000020 its reverse (2000020221), we get a palindrome (14202020241).

The spelling of 12202000020 in words is "twelve billion, two hundred two million, twenty", and thus it is an aban number.

Divisors: 1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 23 28 30 35 36 42 45 46 60 63 69 70 84 90 92 105 115 126 138 140 161 180 207 210 230 252 276 315 322 345 414 420 460 483 630 644 690 805 828 966 1035 1260 1380 1449 1610 1932 2070 2415 2898 3220 4140 4830 5796 7245 9660 14490 28980 421049 842098 1263147 1684196 2105245 2526294 2947343 3789441 4210490 5052588 5894686 6315735 7578882 8420980 8842029 9684127 11789372 12631470 14736715 15157764 17684058 18947205 19368254 25262940 26526087 29052381 29473430 35368116 37894410 38736508 44210145 48420635 53052174 58104762 58946860 67788889 75788820 87157143 88420290 96841270 106104348 116209524 132630435 135577778 145261905 174314286 176840580 193682540 203366667 265260870 271155556 290523810 338944445 348628572 406733334 435785715 530521740 581047620 610100001 677888890 813466668 871571430 1016833335 1220200002 1355777780 1743142860 2033666670 2440400004 3050500005 4067333340 6101000010 12202000020