213222342 has 64 divisors (see below), whose sum is σ = 453519360. Its totient is φ = 66749184.

The previous prime is 213222329. The next prime is 213222367. The reversal of 213222342 is 243222312.

213222342 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 31 ways as a sum of consecutive naturals, for example, 956043 + ... + 956265.

It is an arithmetic number, because the mean of its divisors is an integer number (7086240).

Almost surely, 2^213222342 is an apocalyptic number.

213222342 is an abundant number, since it is smaller than the sum of its proper divisors (240297018).

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

213222342 is a wasteful number, since it uses less digits than its factorization.

213222342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397.

The product of its digits is 1152, while the sum is 21.

The square root of 213222342 is about 14602.1348439192. The cubic root of 213222342 is about 597.4169905048.

Adding to 213222342 its reverse (243222312), we get a palindrome (456444654).

The spelling of 213222342 in words is "two hundred thirteen million, two hundred twenty-two thousand, three hundred forty-two".