22270156 has 6 divisors (see below), whose sum is σ = 38972780. Its totient is φ = 11135076.

The previous prime is 22270139. The next prime is 22270159. The reversal of 22270156 is 65107222.

It is a self number, because there is not a number n which added to its sum of digits gives 22270156.

It is not an unprimeable number, because it can be changed into a prime (22270159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2783766 + ... + 2783773.

Almost surely, 2^22270156 is an apocalyptic number.

It is an amenable number.

22270156 is a deficient number, since it is larger than the sum of its proper divisors (16702624).

22270156 is a wasteful number, since it uses less digits than its factorization.

22270156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5567543 (or 5567541 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 22270156 is about 4719.1266141099. The cubic root of 22270156 is about 281.3462211676.

Adding to 22270156 its reverse (65107222), we get a palindrome (87377378).

The spelling of 22270156 in words is "twenty-two million, two hundred seventy thousand, one hundred fifty-six".