213132212212 has 96 divisors (see below), whose sum is σ = 407963888640. Its totient is φ = 97179264000.

The previous prime is 213132212179. The next prime is 213132212219. The reversal of 213132212212 is 212212231312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213132212219) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28731928 + ... + 28739344.

It is an arithmetic number, because the mean of its divisors is an integer number (4249623840).

Almost surely, 2^213132212212 is an apocalyptic number.

It is an amenable number.

213132212212 is a deficient number, since it is larger than the sum of its proper divisors (194831676428).

213132212212 is a wasteful number, since it uses less digits than its factorization.

213132212212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7673 (or 7671 counting only the distinct ones).

The product of its digits is 576, while the sum is 22.

Adding to 213132212212 its reverse (212212231312), we get a palindrome (425344443524).

The spelling of 213132212212 in words is "two hundred thirteen billion, one hundred thirty-two million, two hundred twelve thousand, two hundred twelve".