12212669483569 has 9 divisors (see below), whose sum is σ = 12291504854187. Its totient is φ = 12134336612424.

The previous prime is 12212669483543. The next prime is 12212669483657. The reversal of 12212669483569 is 96538496621221.

The square root of 12212669483569 is 3494663.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 3579720760225 + 8632948723344 = 1892015^2 + 2938188^2 .

It is not a de Polignac number, because 12212669483569 - 2²³ = 12212661094961 is a prime.

It is a super-2 number, since 2×12212669483569² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12212669483569.

It is not an unprimeable number, because it can be changed into a prime (12212669483369) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 548650962 + ... + 548673220.

Almost surely, 2^{12212669483569} is an apocalyptic number.

12212669483569 is the 3494663-rd square number.

12212669483569 is the 1747332-nd centered octagonal number.

It is an amenable number.

12212669483569 is a deficient number, since it is larger than the sum of its proper divisors (78835370618).

12212669483569 is an frugal number, since it uses more digits than its factorization.

12212669483569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44832 (or 22416 counting only the distinct ones).

The product of its digits is 67184640, while the sum is 64.

Multiplying 12212669483569 by its sum of digits (64), we get a square (781610846948416 = 27957304²).

The spelling of 12212669483569 in words is "twelve trillion, two hundred twelve billion, six hundred sixty-nine million, four hundred eighty-three thousand, five hundred sixty-nine".