22226631 has 16 divisors (see below), whose sum is σ = 34426368. Its totient is φ = 12492000.

The previous prime is 22226627. The next prime is 22226641. The reversal of 22226631 is 13662222.

It is not a de Polignac number, because 22226631 - 2² = 22226627 is a prime.

It is a super-2 number, since 2×22226631² = 988046251220322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22226641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7395 + ... + 9956.

It is an arithmetic number, because the mean of its divisors is an integer number (2151648).

Almost surely, 2^22226631 is an apocalyptic number.

22226631 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

22226631 is a deficient number, since it is larger than the sum of its proper divisors (12199737).

22226631 is a wasteful number, since it uses less digits than its factorization.

22226631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17422.

The product of its digits is 1728, while the sum is 24.

The square root of 22226631 is about 4714.5128062187. The cubic root of 22226631 is about 281.1628130738.

Adding to 22226631 its reverse (13662222), we get a palindrome (35888853).

The spelling of 22226631 in words is "twenty-two million, two hundred twenty-six thousand, six hundred thirty-one".