13165663222212 has 24 divisors (see below), whose sum is σ = 31006982545056. Its totient is φ = 4347539879808.

The previous prime is 13165663222181. The next prime is 13165663222237. The reversal of 13165663222212 is 21222236656131.

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, 5126814613 + ... + 5126817180.

It is an arithmetic number, because the mean of its divisors is an integer number (1291957606044).

Almost surely, 2^{13165663222212} is an apocalyptic number.

13165663222212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13165663222212 is an abundant number, since it is smaller than the sum of its proper divisors (17841319322844).

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

13165663222212 is a wasteful number, since it uses less digits than its factorization.

13165663222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10253631907 (or 10253631905 counting only the distinct ones).

The product of its digits is 311040, while the sum is 42.

Adding to 13165663222212 its reverse (21222236656131), we get a palindrome (34387899878343).

The spelling of 13165663222212 in words is "thirteen trillion, one hundred sixty-five billion, six hundred sixty-three million, two hundred twenty-two thousand, two hundred twelve".