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20212212000020 = 22517193128825387
BaseRepresentation
bin1001001100010000001011…
…01101110110010100010100
32122120021020210210001212012
410212020011231312110110
510122124102233000040
6110553210105443352
74154166312166325
oct446100555662424
978507223701765
1020212212000020
116492a50819637
122325318aa0558
13b38007663a11
144dc3c218444c
15250b754a5865
hex126205b76514

20212212000020 has 48 divisors (see below), whose sum is σ = 47307839866560. Its totient is φ = 7208813689344.

The previous prime is 20212212000017. The next prime is 20212212000061. The reversal of 20212212000020 is 2000021221202.

It is a junction number, because it is equal to n+sod(n) for n = 20212211999959 and 20212212000004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1564406234 + ... + 1564419153.

It is an arithmetic number, because the mean of its divisors is an integer number (985579997220).

Almost surely, 220212212000020 is an apocalyptic number.

20212212000020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20212212000020 is an abundant number, since it is smaller than the sum of its proper divisors (27095627866540).

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

20212212000020 is a wasteful number, since it uses less digits than its factorization.

20212212000020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3128825432 (or 3128825430 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 20212212000020 its reverse (2000021221202), we get a palindrome (22212233221222).

The spelling of 20212212000020 in words is "twenty trillion, two hundred twelve billion, two hundred twelve million, twenty", and thus it is an aban number.

Divisors: 1 2 4 5 10 17 19 20 34 38 68 76 85 95 170 190 323 340 380 646 1292 1615 3230 6460 3128825387 6257650774 12515301548 15644126935 31288253870 53190031579 59447682353 62576507740 106380063158 118895364706 212760126316 237790729412 265950157895 297238411765 531900315790 594476823530 1010610600001 1063800631580 1188953647060 2021221200002 4042442400004 5053053000005 10106106000010 20212212000020