212971110 has 32 divisors (see below), whose sum is σ = 557597952. Its totient is φ = 51629280.

The previous prime is 212971081. The next prime is 212971117. The reversal of 212971110 is 11179212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212971117) 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, 322354 + ... + 323013.

It is an arithmetic number, because the mean of its divisors is an integer number (17424936).

Almost surely, 2^212971110 is an apocalyptic number.

212971110 is an abundant number, since it is smaller than the sum of its proper divisors (344626842).

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

212971110 is a wasteful number, since it uses less digits than its factorization.

212971110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645388.

The product of its (nonzero) digits is 252, while the sum is 24.

The square root of 212971110 is about 14593.5297306717. The cubic root of 212971110 is about 597.1822601741.

The spelling of 212971110 in words is "two hundred twelve million, nine hundred seventy-one thousand, one hundred ten".