212133130 has 32 divisors (see below), whose sum is σ = 417156480. Its totient is φ = 77027520.

The previous prime is 212133127. The next prime is 212133149. The reversal of 212133130 is 31331212.

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, 135291 + ... + 136849.

It is an arithmetic number, because the mean of its divisors is an integer number (13036140).

Almost surely, 2^212133130 is an apocalyptic number.

212133130 is a deficient number, since it is larger than the sum of its proper divisors (205023350).

212133130 is a wasteful number, since it uses less digits than its factorization.

212133130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2814.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 212133130 is about 14564.7907640309. The cubic root of 212133130 is about 596.3979838873.

Adding to 212133130 its reverse (31331212), we get a palindrome (243464342).

The spelling of 212133130 in words is "two hundred twelve million, one hundred thirty-three thousand, one hundred thirty".