12020042432100 has 72 divisors (see below), whose sum is σ = 35043470386848. Its totient is φ = 3180876358400.

The previous prime is 12020042432089. The next prime is 12020042432143. The reversal of 12020042432100 is 123424002021.

It is a super-2 number, since 2×12020042432100² (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 23 ways as a sum of consecutive naturals, for example, 152887449 + ... + 152966048.

It is an arithmetic number, because the mean of its divisors is an integer number (486714866484).

Almost surely, 2^{12020042432100} is an apocalyptic number.

12020042432100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12020042432100 is an abundant number, since it is smaller than the sum of its proper divisors (23023427954748).

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

12020042432100 is a wasteful number, since it uses less digits than its factorization.

12020042432100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305853645 (or 305853638 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 12020042432100 its reverse (123424002021), we get a palindrome (12143466434121).

The spelling of 12020042432100 in words is "twelve trillion, twenty billion, forty-two million, four hundred thirty-two thousand, one hundred".