212131110 has 32 divisors (see below), whose sum is σ = 511971840. Its totient is φ = 56250848.

The previous prime is 212131091. The next prime is 212131123. The reversal of 212131110 is 11131212.

212131110 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 14382 + ... + 25121.

It is an arithmetic number, because the mean of its divisors is an integer number (15999120).

Almost surely, 2^212131110 is an apocalyptic number.

212131110 is an abundant number, since it is smaller than the sum of its proper divisors (299840730).

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

212131110 is a wasteful number, since it uses less digits than its factorization.

212131110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39692.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 212131110 is about 14564.7214185511. The cubic root of 212131110 is about 596.3960908501.

Adding to 212131110 its reverse (11131212), we get a palindrome (223262322).

The spelling of 212131110 in words is "two hundred twelve million, one hundred thirty-one thousand, one hundred ten".