22027155 has 16 divisors (see below), whose sum is σ = 37317024. Its totient is φ = 11056640.

The previous prime is 22027147. The next prime is 22027177. The reversal of 22027155 is 55172022.

It is not a de Polignac number, because 22027155 - 2³ = 22027147 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42936 + ... + 43445.

It is an arithmetic number, because the mean of its divisors is an integer number (2332314).

Almost surely, 2^22027155 is an apocalyptic number.

22027155 is a deficient number, since it is larger than the sum of its proper divisors (15289869).

22027155 is a wasteful number, since it uses less digits than its factorization.

22027155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86406.

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 22027155 is about 4693.3095998453. The cubic root of 22027155 is about 280.3191726009.

Adding to 22027155 its reverse (55172022), we get a palindrome (77199177).

The spelling of 22027155 in words is "twenty-two million, twenty-seven thousand, one hundred fifty-five".