212023312100 has 72 divisors (see below), whose sum is σ = 480807643008. Its totient is φ = 81074448000.

The previous prime is 212023312069. The next prime is 212023312117. The reversal of 212023312100 is 1213320212.

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, 322451 + ... + 726650.

Almost surely, 2^212023312100 is an apocalyptic number.

212023312100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212023312100 is an abundant number, since it is smaller than the sum of its proper divisors (268784330908).

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

212023312100 is a wasteful number, since it uses less digits than its factorization.

212023312100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1049205 (or 1049198 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 212023312100 its reverse (1213320212), we get a palindrome (213236632312).

The spelling of 212023312100 in words is "two hundred twelve billion, twenty-three million, three hundred twelve thousand, one hundred".