212213131210 has 16 divisors (see below), whose sum is σ = 382561535592. Its totient is φ = 84756830400.

The previous prime is 212213131177. The next prime is 212213131219. The reversal of 212213131210 is 12131312212.

It can be written as a sum of positive squares in 4 ways, for example, as 208502737641 + 3710393569 = 456621^2 + 60913^2 .

It is not an unprimeable number, because it can be changed into a prime (212213131219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16045821 + ... + 16059040.

Almost surely, 2^212213131210 is an apocalyptic number.

212213131210 is a deficient number, since it is larger than the sum of its proper divisors (170348404382).

212213131210 is a wasteful number, since it uses less digits than its factorization.

212213131210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32105529.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 212213131210 its reverse (12131312212), we get a palindrome (224344443422).

The spelling of 212213131210 in words is "two hundred twelve billion, two hundred thirteen million, one hundred thirty-one thousand, two hundred ten".