22115015 has 16 divisors (see below), whose sum is σ = 28697088. Its totient is φ = 16263936.

The previous prime is 22114999. The next prime is 22115033. The reversal of 22115015 is 51051122.

It is not a de Polignac number, because 22115015 - 2⁴ = 22114999 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22114984 and 22115002.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 19802 + ... + 20888.

It is an arithmetic number, because the mean of its divisors is an integer number (1793568).

Almost surely, 2^22115015 is an apocalyptic number.

22115015 is a deficient number, since it is larger than the sum of its proper divisors (6582073).

22115015 is a wasteful number, since it uses less digits than its factorization.

22115015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1418.

The product of its (nonzero) digits is 100, while the sum is 17.

The square root of 22115015 is about 4702.6604172532. The cubic root of 22115015 is about 280.6913824040.

Adding to 22115015 its reverse (51051122), we get a palindrome (73166137).

The spelling of 22115015 in words is "twenty-two million, one hundred fifteen thousand, fifteen".