212100222110120 has 64 divisors (see below), whose sum is σ = 477379934655120. Its totient is φ = 84812637302784.

The previous prime is 212100222110069. The next prime is 212100222110213. The reversal of 212100222110120 is 21011222001212.

It can be written as a sum of positive squares in 8 ways, for example, as 119448855298756 + 92651366811364 = 10929266^2 + 9625558^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2274413414 + ... + 2274506666.

Almost surely, 2^{212100222110120} is an apocalyptic number.

212100222110120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212100222110120 is an abundant number, since it is smaller than the sum of its proper divisors (265279712545000).

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

212100222110120 is a wasteful number, since it uses less digits than its factorization.

212100222110120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111054 (or 111050 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 212100222110120 its reverse (21011222001212), we get a palindrome (233111444111332).

The spelling of 212100222110120 in words is "two hundred twelve trillion, one hundred billion, two hundred twenty-two million, one hundred ten thousand, one hundred twenty".