22261136 has 20 divisors (see below), whose sum is σ = 43537392. Its totient is φ = 11025696.

The previous prime is 22261123. The next prime is 22261147. The reversal of 22261136 is 63116222.

It is a Smith number, since the sum of its digits (23) coincides with the sum of the digits of its prime factors.

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, 4790 + ... + 8213.

Almost surely, 2^22261136 is an apocalyptic number.

It is an amenable number.

22261136 is a deficient number, since it is larger than the sum of its proper divisors (21276256).

22261136 is a wasteful number, since it uses less digits than its factorization.

22261136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13118 (or 13112 counting only the distinct ones).

The product of its digits is 864, while the sum is 23.

The square root of 22261136 is about 4718.1708320068. The cubic root of 22261136 is about 281.3082318272.

Adding to 22261136 its reverse (63116222), we get a palindrome (85377358).

The spelling of 22261136 in words is "twenty-two million, two hundred sixty-one thousand, one hundred thirty-six".