13216210661212 has 18 divisors (see below), whose sum is σ = 25044328192128. Its totient is φ = 6099789535632.

The previous prime is 13216210661189. The next prime is 13216210661243. The reversal of 13216210661212 is 21216601261231.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9775303068 + ... + 9775304419.

Almost surely, 2^{13216210661212} is an apocalyptic number.

It is an amenable number.

13216210661212 is a deficient number, since it is larger than the sum of its proper divisors (11828117530916).

13216210661212 is a wasteful number, since it uses less digits than its factorization.

13216210661212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19550607517 (or 19550607502 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The spelling of 13216210661212 in words is "thirteen trillion, two hundred sixteen billion, two hundred ten million, six hundred sixty-one thousand, two hundred twelve".