212210122100 has 36 divisors (see below), whose sum is σ = 460829715948. Its totient is φ = 84822528000.

The previous prime is 212210122099. The next prime is 212210122133. The reversal of 212210122100 is 1221012212.

It can be written as a sum of positive squares in 6 ways, for example, as 31967716 + 212178154384 = 5654^2 + 460628^2 .

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, 630221 + ... + 906420.

It is an arithmetic number, because the mean of its divisors is an integer number (12800825443).

Almost surely, 2^212210122100 is an apocalyptic number.

212210122100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212210122100 is an abundant number, since it is smaller than the sum of its proper divisors (248619593848).

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

212210122100 is a wasteful number, since it uses less digits than its factorization.

212210122100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1538036 (or 1538029 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 212210122100 its reverse (1221012212), we get a palindrome (213431134312).

The spelling of 212210122100 in words is "two hundred twelve billion, two hundred ten million, one hundred twenty-two thousand, one hundred".