902211212212 has 24 divisors (see below), whose sum is σ = 1670720591232. Its totient is φ = 425414959200.

The previous prime is 902211212191. The next prime is 902211212239. The reversal of 902211212212 is 212212112209.

It is a happy number.

It is a congruent number.

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, 69054339 + ... + 69067402.

It is an arithmetic number, because the mean of its divisors is an integer number (69613357968).

Almost surely, 2^902211212212 is an apocalyptic number.

902211212212 is a gapful number since it is divisible by the number (92) formed by its first and last digit.

It is an amenable number.

902211212212 is a deficient number, since it is larger than the sum of its proper divisors (768509379020).

902211212212 is a wasteful number, since it uses less digits than its factorization.

902211212212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138121839 (or 138121837 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 25.

The spelling of 902211212212 in words is "nine hundred two billion, two hundred eleven million, two hundred twelve thousand, two hundred twelve".