212102322032100 has 72 divisors (see below), whose sum is σ = 613699757264160. Its totient is φ = 56559048807680.

The previous prime is 212102322032063. The next prime is 212102322032101. The reversal of 212102322032100 is 1230223201212.

It is a super-2 number, since 2×212102322032100² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212102322032101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1027936 + ... + 20621864.

It is an arithmetic number, because the mean of its divisors is an integer number (8523607739780).

Almost surely, 2^{212102322032100} is an apocalyptic number.

212102322032100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212102322032100 is an abundant number, since it is smaller than the sum of its proper divisors (401597435232060).

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

212102322032100 is a wasteful number, since it uses less digits than its factorization.

212102322032100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19630029 (or 19630022 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 212102322032100 its reverse (1230223201212), we get a palindrome (213332545233312).

The spelling of 212102322032100 in words is "two hundred twelve trillion, one hundred two billion, three hundred twenty-two million, thirty-two thousand, one hundred".