12225644684 has 54 divisors (see below), whose sum is σ = 23751612612. Its totient is φ = 5460764400.

The previous prime is 12225644663. The next prime is 12225644723. The reversal of 12225644684 is 48644652221.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 57941339 + ... + 57941549.

It is an arithmetic number, because the mean of its divisors is an integer number (439844678).

Almost surely, 2^12225644684 is an apocalyptic number.

It is an amenable number.

12225644684 is a deficient number, since it is larger than the sum of its proper divisors (11525967928).

12225644684 is an equidigital number, since it uses as much as digits as its factorization.

12225644684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595 (or 303 counting only the distinct ones).

The product of its digits is 737280, while the sum is 44.

Multiplying 12225644684 by its sum of digits (44), we get a square (537928366096 = 733436²).

12225644684 divided by its sum of digits (44) gives a square (277855561 = 16669²).

The spelling of 12225644684 in words is "twelve billion, two hundred twenty-five million, six hundred forty-four thousand, six hundred eighty-four".