12355552100 has 18 divisors (see below), whose sum is σ = 26811548274. Its totient is φ = 4942220800.

The previous prime is 12355552073. The next prime is 12355552127. The reversal of 12355552100 is 125555321.

It is an interprime number because it is at equal distance from previous prime (12355552073) and next prime (12355552127).

It can be written as a sum of positive squares in 3 ways, for example, as 784996 + 12354767104 = 886^2 + 111152^2 .

It is a super-3 number, since 3×12355552100³ (a number of 31 digits) contains 333 as substring.

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, 61777661 + ... + 61777860.

Almost surely, 2^12355552100 is an apocalyptic number.

12355552100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12355552100 is an abundant number, since it is smaller than the sum of its proper divisors (14455996174).

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

12355552100 is a wasteful number, since it uses less digits than its factorization.

12355552100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123555535 (or 123555528 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 29.

The spelling of 12355552100 in words is "twelve billion, three hundred fifty-five million, five hundred fifty-two thousand, one hundred".