12220746540 has 48 divisors (see below), whose sum is σ = 34250519520. Its totient is φ = 3255777280.

The previous prime is 12220746529. The next prime is 12220746617. The reversal of 12220746540 is 4564702221.

12220746540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 32325 + ... + 159644.

It is an arithmetic number, because the mean of its divisors is an integer number (713552490).

Almost surely, 2^12220746540 is an apocalyptic number.

12220746540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12220746540 is an abundant number, since it is smaller than the sum of its proper divisors (22029772980).

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

12220746540 is a wasteful number, since it uses less digits than its factorization.

12220746540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193042 (or 193040 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 33.

The spelling of 12220746540 in words is "twelve billion, two hundred twenty million, seven hundred forty-six thousand, five hundred forty".