212100122220102 has 32 divisors (see below), whose sum is σ = 471728687729760. Its totient is φ = 70640778320640.

The previous prime is 212100122220097. The next prime is 212100122220113. The reversal of 212100122220102 is 201022221001212.

It is a happy number.

212100122220102 is a `hidden beast` number, since 212 + 10 + 0 + 122 + 220 + 102 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1646113299 + ... + 1646242142.

It is an arithmetic number, because the mean of its divisors is an integer number (14741521491555).

Almost surely, 2^{212100122220102} is an apocalyptic number.

212100122220102 is an abundant number, since it is smaller than the sum of its proper divisors (259628565509658).

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

212100122220102 is a wasteful number, since it uses less digits than its factorization.

212100122220102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3292356645 (or 3292356639 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 212100122220102 its reverse (201022221001212), we get a palindrome (413122343221314).

The spelling of 212100122220102 in words is "two hundred twelve trillion, one hundred billion, one hundred twenty-two million, two hundred twenty thousand, one hundred two".