22152168 has 24 divisors (see below), whose sum is σ = 59995650. Its totient is φ = 7384032.

The previous prime is 22152149. The next prime is 22152187. The reversal of 22152168 is 86125122.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22152149) and next prime (22152187).

It can be written as a sum of positive squares in only one way, i.e., 16305444 + 5846724 = 4038^2 + 2418^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 153763 + ... + 153906.

Almost surely, 2^22152168 is an apocalyptic number.

It is an amenable number.

22152168 is an abundant number, since it is smaller than the sum of its proper divisors (37843482).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22152168 is a wasteful number, since it uses less digits than its factorization.

22152168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307681 (or 307674 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

The square root of 22152168 is about 4706.6089703735. The cubic root of 22152168 is about 280.8484806837.

The spelling of 22152168 in words is "twenty-two million, one hundred fifty-two thousand, one hundred sixty-eight".