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12200111200 = 255217897067
BaseRepresentation
bin10110101110010111…
…01110110001100000
31011111020122212022101
423113023232301200
5144441212024300
65334334420144
7611221143214
oct132713566140
934436585271
1012200111200
1151a0710132
122445961654
1311c575a614
1483a42c944
154b60ecb6a
hex2d72eec60

12200111200 has 72 divisors (see below), whose sum is σ = 31535528472. Its totient is φ = 4592977920.

The previous prime is 12200111197. The next prime is 12200111219. The reversal of 12200111200 is 211100221.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 434934 + ... + 462133.

It is an arithmetic number, because the mean of its divisors is an integer number (437993451).

Almost surely, 212200111200 is an apocalyptic number.

12200111200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12200111200 is an abundant number, since it is smaller than the sum of its proper divisors (19335417272).

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

12200111200 is a wasteful number, since it uses less digits than its factorization.

12200111200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 897104 (or 897091 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 12200111200 its reverse (211100221), we get a palindrome (12411211421).

The spelling of 12200111200 in words is "twelve billion, two hundred million, one hundred eleven thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 17 20 25 32 34 40 50 68 80 85 100 136 160 170 200 272 340 400 425 544 680 800 850 1360 1700 2720 3400 6800 13600 897067 1794134 3588268 4485335 7176536 8970670 14353072 15250139 17941340 22426675 28706144 30500278 35882680 44853350 61000556 71765360 76250695 89706700 122001112 143530720 152501390 179413400 244002224 305002780 358826800 381253475 488004448 610005560 717653600 762506950 1220011120 1525013900 2440022240 3050027800 6100055600 12200111200