1222313502 has 32 divisors (see below), whose sum is σ = 2489564160. Its totient is φ = 399968000.

The previous prime is 1222313501. The next prime is 1222313509. The reversal of 1222313502 is 2053132221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222313501) 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, 303502 + ... + 307502.

It is an arithmetic number, because the mean of its divisors is an integer number (77798880).

Almost surely, 2^1222313502 is an apocalyptic number.

1222313502 is an abundant number, since it is smaller than the sum of its proper divisors (1267250658).

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

1222313502 is a wasteful number, since it uses less digits than its factorization.

1222313502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4928.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1222313502 is about 34961.6003924306. The cubic root of 1222313502 is about 1069.2047259743.

Adding to 1222313502 its reverse (2053132221), we get a palindrome (3275445723).

The spelling of 1222313502 in words is "one billion, two hundred twenty-two million, three hundred thirteen thousand, five hundred two".