12020200122100 has 36 divisors (see below), whose sum is σ = 26200802180224. Its totient is φ = 4786519142880.

The previous prime is 12020200122071. The next prime is 12020200122131. The reversal of 12020200122100 is 122100202021.

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 11 ways as a sum of consecutive naturals, for example, 269488914 + ... + 269533513.

Almost surely, 2^{12020200122100} is an apocalyptic number.

12020200122100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12020200122100 is an abundant number, since it is smaller than the sum of its proper divisors (14180602058124).

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

12020200122100 is a wasteful number, since it uses less digits than its factorization.

12020200122100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539022664 (or 539022657 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12020200122100 its reverse (122100202021), we get a palindrome (12142300324121).

The spelling of 12020200122100 in words is "twelve trillion, twenty billion, two hundred million, one hundred twenty-two thousand, one hundred".