22152013 has 24 divisors (see below), whose sum is σ = 25824960. Its totient is φ = 18944640.

The previous prime is 22152007. The next prime is 22152019. The reversal of 22152013 is 31025122.

It is an interprime number because it is at equal distance from previous prime (22152007) and next prime (22152019).

It is not a de Polignac number, because 22152013 - 2¹⁷ = 22020941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22152019) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 159298 + ... + 159436.

It is an arithmetic number, because the mean of its divisors is an integer number (1076040).

Almost surely, 2^22152013 is an apocalyptic number.

22152013 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

22152013 is a deficient number, since it is larger than the sum of its proper divisors (3672947).

22152013 is a wasteful number, since it uses less digits than its factorization.

22152013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229 (or 216 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 22152013 is about 4706.5925041371. The cubic root of 22152013 is about 280.8478256445.

Adding to 22152013 its reverse (31025122), we get a palindrome (53177135).

The spelling of 22152013 in words is "twenty-two million, one hundred fifty-two thousand, thirteen".