22081134 has 16 divisors (see below), whose sum is σ = 44329680. Its totient is φ = 7332480.

The previous prime is 22081133. The next prime is 22081159. The reversal of 22081134 is 43118022.

It is a self number, because there is not a number n which added to its sum of digits gives 22081134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22081133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5227 + ... + 8454.

It is an arithmetic number, because the mean of its divisors is an integer number (2770605).

Almost surely, 2^22081134 is an apocalyptic number.

22081134 is an abundant number, since it is smaller than the sum of its proper divisors (22248546).

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

22081134 is a wasteful number, since it uses less digits than its factorization.

22081134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13955.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 22081134 is about 4699.0567138523. The cubic root of 22081134 is about 280.5479660347.

Adding to 22081134 its reverse (43118022), we get a palindrome (65199156).

The spelling of 22081134 in words is "twenty-two million, eighty-one thousand, one hundred thirty-four".