22142152 has 16 divisors (see below), whose sum is σ = 41906160. Its totient is φ = 10967184.

The previous prime is 22142149. The next prime is 22142161. The reversal of 22142152 is 25124122.

It is a super-2 number, since 2×22142152² = 980549790382208, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12078 + ... + 13789.

It is an arithmetic number, because the mean of its divisors is an integer number (2619135).

Almost surely, 2^22142152 is an apocalyptic number.

It is an amenable number.

22142152 is a deficient number, since it is larger than the sum of its proper divisors (19764008).

22142152 is a wasteful number, since it uses less digits than its factorization.

22142152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25980 (or 25976 counting only the distinct ones).

The product of its digits is 320, while the sum is 19.

The square root of 22142152 is about 4705.5448143653. The cubic root of 22142152 is about 280.8061461900.

Adding to 22142152 its reverse (25124122), we get a palindrome (47266274).

The spelling of 22142152 in words is "twenty-two million, one hundred forty-two thousand, one hundred fifty-two".