1222943264 has 24 divisors (see below), whose sum is σ = 2408978880. Its totient is φ = 611139136.

The previous prime is 1222943233. The next prime is 1222943269. The reversal of 1222943264 is 4623492221.

It is not an unprimeable number, because it can be changed into a prime (1222943269) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55877 + ... + 74619.

It is an arithmetic number, because the mean of its divisors is an integer number (100374120).

Almost surely, 2^1222943264 is an apocalyptic number.

It is an amenable number.

1222943264 is a deficient number, since it is larger than the sum of its proper divisors (1186035616).

1222943264 is a wasteful number, since it uses less digits than its factorization.

1222943264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20792 (or 20784 counting only the distinct ones).

The product of its digits is 41472, while the sum is 35.

The square root of 1222943264 is about 34970.6057139421. The cubic root of 1222943264 is about 1069.3883201445.

The spelling of 1222943264 in words is "one billion, two hundred twenty-two million, nine hundred forty-three thousand, two hundred sixty-four".