9913312212 has 48 divisors (see below), whose sum is σ = 23354154432. Its totient is φ = 3272705280.

The previous prime is 9913312193. The next prime is 9913312229. The reversal of 9913312212 is 2122133199.

It is a congruent number.

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, 581287 + ... + 598097.

It is an arithmetic number, because the mean of its divisors is an integer number (486544884).

Almost surely, 2^9913312212 is an apocalyptic number.

It is an amenable number.

9913312212 is an abundant number, since it is smaller than the sum of its proper divisors (13440842220).

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

9913312212 is a wasteful number, since it uses less digits than its factorization.

9913312212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17288 (or 17286 counting only the distinct ones).

The product of its digits is 5832, while the sum is 33.

The square root of 9913312212 is about 99565.6176197386. The cubic root of 9913312212 is about 2148.1911746523.

The spelling of 9913312212 in words is "nine billion, nine hundred thirteen million, three hundred twelve thousand, two hundred twelve".