22136650 has 12 divisors (see below), whose sum is σ = 41174262. Its totient is φ = 8854640.

The previous prime is 22136641. The next prime is 22136651. The reversal of 22136650 is 5663122.

It can be written as a sum of positive squares in 3 ways, for example, as 20857489 + 1279161 = 4567^2 + 1131^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (22136651) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 221317 + ... + 221416.

Almost surely, 2^22136650 is an apocalyptic number.

22136650 is a deficient number, since it is larger than the sum of its proper divisors (19037612).

22136650 is a wasteful number, since it uses less digits than its factorization.

22136650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442745 (or 442740 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 22136650 is about 4704.9601486091. The cubic root of 22136650 is about 280.7828855271.

Adding to 22136650 its reverse (5663122), we get a palindrome (27799772).

The spelling of 22136650 in words is "twenty-two million, one hundred thirty-six thousand, six hundred fifty".