1222322013 has 24 divisors (see below), whose sum is σ = 1953222336. Its totient is φ = 730363200.

The previous prime is 1222321979. The next prime is 1222322021. The reversal of 1222322013 is 3102232221.

It is not a de Polignac number, because 1222322013 - 2⁸ = 1222321757 is a prime.

It is a super-2 number, since 2×1222322013² = 2988142206928744338, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222322113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 79920 + ... + 93977.

It is an arithmetic number, because the mean of its divisors is an integer number (81384264).

Almost surely, 2^1222322013 is an apocalyptic number.

It is an amenable number.

1222322013 is a deficient number, since it is larger than the sum of its proper divisors (730900323).

1222322013 is a wasteful number, since it uses less digits than its factorization.

1222322013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173985 (or 173982 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1222322013 is about 34961.7221114750. The cubic root of 1222322013 is about 1069.2072076018.

Adding to 1222322013 its reverse (3102232221), we get a palindrome (4324554234).

The spelling of 1222322013 in words is "one billion, two hundred twenty-two million, three hundred twenty-two thousand, thirteen".