12216492526 has 12 divisors (see below), whose sum is σ = 21316533048. Its totient is φ = 5235639612.

The previous prime is 12216492521. The next prime is 12216492539. The reversal of 12216492526 is 62529461221.

12216492526 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12216492521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 62328946 + ... + 62329141.

It is an arithmetic number, because the mean of its divisors is an integer number (1776377754).

Almost surely, 2^12216492526 is an apocalyptic number.

12216492526 is a deficient number, since it is larger than the sum of its proper divisors (9100040522).

12216492526 is a wasteful number, since it uses less digits than its factorization.

12216492526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124658103 (or 124658096 counting only the distinct ones).

The product of its digits is 103680, while the sum is 40.

The spelling of 12216492526 in words is "twelve billion, two hundred sixteen million, four hundred ninety-two thousand, five hundred twenty-six".