212021010022110 has 64 divisors (see below), whose sum is σ = 531112889253888. Its totient is φ = 54066611481344.

The previous prime is 212021010022091. The next prime is 212021010022123. The reversal of 212021010022110 is 11220010120212.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 212021010022110.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37438302 + ... + 42727841.

It is an arithmetic number, because the mean of its divisors is an integer number (8298638894592).

Almost surely, 2^{212021010022110} is an apocalyptic number.

212021010022110 is an abundant number, since it is smaller than the sum of its proper divisors (319091879231778).

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

212021010022110 is a wasteful number, since it uses less digits than its factorization.

212021010022110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80170009.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 212021010022110 its reverse (11220010120212), we get a palindrome (223241020142322).

The spelling of 212021010022110 in words is "two hundred twelve trillion, twenty-one billion, ten million, twenty-two thousand, one hundred ten".