1222565363 has 16 divisors (see below), whose sum is σ = 1280365056. Its totient is φ = 1166387040.

The previous prime is 1222565339. The next prime is 1222565423. The reversal of 1222565363 is 3635652221.

It is a cyclic number.

It is not a de Polignac number, because 1222565363 - 2²⁰ = 1221516787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222565563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 404528 + ... + 407538.

It is an arithmetic number, because the mean of its divisors is an integer number (80022816).

Almost surely, 2^1222565363 is an apocalyptic number.

1222565363 is a deficient number, since it is larger than the sum of its proper divisors (57799693).

1222565363 is a wasteful number, since it uses less digits than its factorization.

1222565363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3274.

The product of its digits is 64800, while the sum is 35.

The square root of 1222565363 is about 34965.2021730177. The cubic root of 1222565363 is about 1069.2781584385.

The spelling of 1222565363 in words is "one billion, two hundred twenty-two million, five hundred sixty-five thousand, three hundred sixty-three".