12120011212100 has 36 divisors (see below), whose sum is σ = 28691371999248. Its totient is φ = 4407276804000.

The previous prime is 12120011212021. The next prime is 12120011212223. The reversal of 12120011212100 is 121211002121.

It is a super-2 number, since 2×12120011212100² (a number of 27 digits) contains 22 as substring.

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, 5509094906 + ... + 5509097105.

Almost surely, 2^{12120011212100} is an apocalyptic number.

12120011212100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12120011212100 is an abundant number, since it is smaller than the sum of its proper divisors (16571360787148).

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

12120011212100 is a wasteful number, since it uses less digits than its factorization.

12120011212100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11018192036 (or 11018192029 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12120011212100 its reverse (121211002121), we get a palindrome (12241222214221).

The spelling of 12120011212100 in words is "twelve trillion, one hundred twenty billion, eleven million, two hundred twelve thousand, one hundred".