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12102102200 = 235260510511
BaseRepresentation
bin10110100010101011…
…10110110010111000
31011020102020111020102
423101111312302320
5144241114232300
65320514014532
7605621112536
oct132125666270
934212214212
1012102102200
115150359561
122418b77448
1311ab363126
1482b3d9156
154ac6dd0d5
hex2d1576cb8

12102102200 has 24 divisors (see below), whose sum is σ = 28137388080. Its totient is φ = 4840840800.

The previous prime is 12102102157. The next prime is 12102102223. The reversal of 12102102200 is 220120121.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30255056 + ... + 30255455.

It is an arithmetic number, because the mean of its divisors is an integer number (1172391170).

Almost surely, 212102102200 is an apocalyptic number.

12102102200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12102102200 is an abundant number, since it is smaller than the sum of its proper divisors (16035285880).

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

12102102200 is a wasteful number, since it uses less digits than its factorization.

12102102200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60510527 (or 60510518 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 12102102200 its reverse (220120121), we get a palindrome (12322222321).

The spelling of 12102102200 in words is "twelve billion, one hundred two million, one hundred two thousand, two hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 60510511 121021022 242042044 302552555 484084088 605105110 1210210220 1512762775 2420420440 3025525550 6051051100 12102102200