22022231 has 16 divisors (see below), whose sum is σ = 27710208. Its totient is φ = 17001600.

The previous prime is 22022227. The next prime is 22022237. The reversal of 22022231 is 13222022.

It is not a de Polignac number, because 22022231 - 2² = 22022227 is a prime.

It is a super-2 number, since 2×22022231² = 969957316434722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22022237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7436 + ... + 9966.

It is an arithmetic number, because the mean of its divisors is an integer number (1731888).

Almost surely, 2^22022231 is an apocalyptic number.

22022231 is a deficient number, since it is larger than the sum of its proper divisors (5687977).

22022231 is a wasteful number, since it uses less digits than its factorization.

22022231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2662.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 22022231 is about 4692.7849940094. The cubic root of 22022231 is about 280.2982833171.

Adding to 22022231 its reverse (13222022), we get a palindrome (35244253).

The spelling of 22022231 in words is "twenty-two million, twenty-two thousand, two hundred thirty-one".