12216861034 has 32 divisors (see below), whose sum is σ = 22092894720. Its totient is φ = 4949557488.

The previous prime is 12216861029. The next prime is 12216861043. The reversal of 12216861034 is 43016861221.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75049 + ... + 173395.

It is an arithmetic number, because the mean of its divisors is an integer number (690402960).

Almost surely, 2^12216861034 is an apocalyptic number.

12216861034 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12216861034 is a deficient number, since it is larger than the sum of its proper divisors (9876033686).

12216861034 is a wasteful number, since it uses less digits than its factorization.

12216861034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98842.

The product of its (nonzero) digits is 13824, while the sum is 34.

The spelling of 12216861034 in words is "twelve billion, two hundred sixteen million, eight hundred sixty-one thousand, thirty-four".