12221567360 has 32 divisors (see below), whose sum is σ = 29217186000. Its totient is φ = 4888626688.

The previous prime is 12221567357. The next prime is 12221567387. The reversal of 12221567360 is 6376512221.

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 12221567360.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9547460 + ... + 9548739.

Almost surely, 2^12221567360 is an apocalyptic number.

12221567360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12221567360 is an abundant number, since it is smaller than the sum of its proper divisors (16995618640).

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

12221567360 is an equidigital number, since it uses as much as digits as its factorization.

12221567360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19096218 (or 19096206 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 35.

The spelling of 12221567360 in words is "twelve billion, two hundred twenty-one million, five hundred sixty-seven thousand, three hundred sixty".