212013213312 has 64 divisors (see below), whose sum is σ = 569945244960. Its totient is φ = 69819601920.

The previous prime is 212013213283. The next prime is 212013213329. The reversal of 212013213312 is 213312310212.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×212013213312² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3294139 + ... + 3357882.

Almost surely, 2^212013213312 is an apocalyptic number.

It is an amenable number.

212013213312 is an abundant number, since it is smaller than the sum of its proper divisors (357932031648).

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

212013213312 is an equidigital number, since it uses as much as digits as its factorization.

212013213312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6652121 (or 6652109 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 212013213312 its reverse (213312310212), we get a palindrome (425325523524).

The spelling of 212013213312 in words is "two hundred twelve billion, thirteen million, two hundred thirteen thousand, three hundred twelve".