22222013 has 12 divisors (see below), whose sum is σ = 24999744. Its totient is φ = 19727400.

The previous prime is 22221977. The next prime is 22222049. The reversal of 22222013 is 31022222.

It is an interprime number because it is at equal distance from previous prime (22221977) and next prime (22222049).

It is not a de Polignac number, because 22222013 - 2⁶ = 22221949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22222063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3068 + ... + 7338.

It is an arithmetic number, because the mean of its divisors is an integer number (2083312).

Almost surely, 2^22222013 is an apocalyptic number.

It is an amenable number.

22222013 is a deficient number, since it is larger than the sum of its proper divisors (2777731).

22222013 is a wasteful number, since it uses less digits than its factorization.

22222013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4336 (or 4325 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 22222013 is about 4714.0230164903. The cubic root of 22222013 is about 281.1433394402.

Adding to 22222013 its reverse (31022222), we get a palindrome (53244235).

The spelling of 22222013 in words is "twenty-two million, two hundred twenty-two thousand, thirteen".