212122102110 has 32 divisors (see below), whose sum is σ = 517438837152. Its totient is φ = 55638583680.

The previous prime is 212122102109. The next prime is 212122102117. The reversal of 212122102110 is 11201221212.

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 212122102110.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212122102117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57955029 + ... + 57958688.

It is an arithmetic number, because the mean of its divisors is an integer number (16169963661).

Almost surely, 2^212122102110 is an apocalyptic number.

212122102110 is an abundant number, since it is smaller than the sum of its proper divisors (305316735042).

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

212122102110 is a wasteful number, since it uses less digits than its factorization.

212122102110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115913788.

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

Adding to 212122102110 its reverse (11201221212), we get a palindrome (223323323322).

The spelling of 212122102110 in words is "two hundred twelve billion, one hundred twenty-two million, one hundred two thousand, one hundred ten".