22118151 has 16 divisors (see below), whose sum is σ = 32273280. Its totient is φ = 13362720.

The previous prime is 22118149. The next prime is 22118167. The reversal of 22118151 is 15181122.

It is not a de Polignac number, because 22118151 - 2¹ = 22118149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22118101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11976 + ... + 13698.

It is an arithmetic number, because the mean of its divisors is an integer number (2017080).

Almost surely, 2^22118151 is an apocalyptic number.

22118151 is a deficient number, since it is larger than the sum of its proper divisors (10155129).

22118151 is a wasteful number, since it uses less digits than its factorization.

22118151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2126.

The product of its digits is 160, while the sum is 21.

The square root of 22118151 is about 4702.9938337191. The cubic root of 22118151 is about 280.7046495074.

Adding to 22118151 its reverse (15181122), we get a palindrome (37299273).

The spelling of 22118151 in words is "twenty-two million, one hundred eighteen thousand, one hundred fifty-one".