212022102012100 has 36 divisors (see below), whose sum is σ = 461453207615764. Its totient is φ = 84557182510080.

The previous prime is 212022102012089. The next prime is 212022102012191. The reversal of 212022102012100 is 1210201220212.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 44776011654144 + 167246090357956 = 6691488^2 + 12932366^2 .

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, 3145694817 + ... + 3145762216.

Almost surely, 2^{212022102012100} is an apocalyptic number.

212022102012100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212022102012100 is an abundant number, since it is smaller than the sum of its proper divisors (249431105603664).

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

212022102012100 is a wasteful number, since it uses less digits than its factorization.

212022102012100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6291457384 (or 6291457377 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 212022102012100 its reverse (1210201220212), we get a palindrome (213232303232312).

The spelling of 212022102012100 in words is "two hundred twelve trillion, twenty-two billion, one hundred two million, twelve thousand, one hundred".