22224651 has 16 divisors (see below), whose sum is σ = 30307200. Its totient is φ = 14482368.

The previous prime is 22224617. The next prime is 22224667. The reversal of 22224651 is 15642222.

It is a happy number.

It is not a de Polignac number, because 22224651 - 2¹⁴ = 22208267 is a prime.

It is a super-2 number, since 2×22224651² = 987870224143602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22224611) 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, 54135 + ... + 54543.

It is an arithmetic number, because the mean of its divisors is an integer number (1894200).

Almost surely, 2^22224651 is an apocalyptic number.

22224651 is a deficient number, since it is larger than the sum of its proper divisors (8082549).

22224651 is a wasteful number, since it uses less digits than its factorization.

22224651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 778.

The product of its digits is 1920, while the sum is 24.

The square root of 22224651 is about 4714.3028116573. The cubic root of 22224651 is about 281.1544639467.

Adding to 22224651 its reverse (15642222), we get a palindrome (37866873).

The spelling of 22224651 in words is "twenty-two million, two hundred twenty-four thousand, six hundred fifty-one".