12091102900 has 36 divisors (see below), whose sum is σ = 26323224928. Its totient is φ = 4820675040.

The previous prime is 12091102883. The next prime is 12091102913. The reversal of 12091102900 is 920119021.

It is a Harshad number since it is a multiple of its sum of digits (25).

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, 166224 + ... + 227623.

Almost surely, 2^12091102900 is an apocalyptic number.

12091102900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12091102900 is an abundant number, since it is smaller than the sum of its proper divisors (14232122028).

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

12091102900 is a wasteful number, since it uses less digits than its factorization.

12091102900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394168 (or 394161 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 25.

The spelling of 12091102900 in words is "twelve billion, ninety-one million, one hundred two thousand, nine hundred".