22211136 has 42 divisors (see below), whose sum is σ = 63665862. Its totient is φ = 7403520.

The previous prime is 22211131. The next prime is 22211141. The reversal of 22211136 is 63111222.

It is an interprime number because it is at equal distance from previous prime (22211131) and next prime (22211141).

It can be written as a sum of positive squares in only one way, i.e., 16451136 + 5760000 = 4056^2 + 2400^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits and also a Zuckerman number because it is divisible by the product of its digits.

It is not an unprimeable number, because it can be changed into a prime (22211131) 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, 18705 + ... + 19856.

Almost surely, 2^22211136 is an apocalyptic number.

It is an amenable number.

22211136 is an abundant number, since it is smaller than the sum of its proper divisors (41454726).

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

22211136 is a wasteful number, since it uses less digits than its factorization.

22211136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38579 (or 38566 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 22211136 is about 4712.8691897824. The cubic root of 22211136 is about 281.0974615807.

Adding to 22211136 its reverse (63111222), we get a palindrome (85322358).

The spelling of 22211136 in words is "twenty-two million, two hundred eleven thousand, one hundred thirty-six".