20212112110100 has 36 divisors (see below), whose sum is σ = 43862216901468. Its totient is φ = 8084488416000.

The previous prime is 20212112110097. The next prime is 20212112110129. The reversal of 20212112110100 is 101121121202.

It can be written as a sum of positive squares in 6 ways, for example, as 1800644356 + 20210311465744 = 42434^2 + 4495588^2 .

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, 2169881 + ... + 6718080.

Almost surely, 2^{20212112110100} is an apocalyptic number.

20212112110100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20212112110100 is an abundant number, since it is smaller than the sum of its proper divisors (23650104791368).

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

20212112110100 is a wasteful number, since it uses less digits than its factorization.

20212112110100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8910716 (or 8910709 counting only the distinct ones).

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

Adding to 20212112110100 its reverse (101121121202), we get a palindrome (20313233231302).

The spelling of 20212112110100 in words is "twenty trillion, two hundred twelve billion, one hundred twelve million, one hundred ten thousand, one hundred".