1216031064252 has 12 divisors (see below), whose sum is σ = 2837405816616. Its totient is φ = 405343688080.

The previous prime is 1216031064247. The next prime is 1216031064277. The reversal of 1216031064252 is 2524601306121.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50667960999 + ... + 50667961022.

It is an arithmetic number, because the mean of its divisors is an integer number (236450484718).

Almost surely, 2^{1216031064252} is an apocalyptic number.

1216031064252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1216031064252 is an abundant number, since it is smaller than the sum of its proper divisors (1621374752364).

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

1216031064252 is a wasteful number, since it uses less digits than its factorization.

1216031064252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101335922028 (or 101335922026 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The spelling of 1216031064252 in words is "one trillion, two hundred sixteen billion, thirty-one million, sixty-four thousand, two hundred fifty-two".