22645122 has 16 divisors (see below), whose sum is σ = 47954592. Its totient is φ = 7104320.

The previous prime is 22645121. The next prime is 22645127. The reversal of 22645122 is 22154622.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22645092 and 22645101.

It is not an unprimeable number, because it can be changed into a prime (22645121) 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, 110904 + ... + 111107.

It is an arithmetic number, because the mean of its divisors is an integer number (2997162).

Almost surely, 2^22645122 is an apocalyptic number.

22645122 is an abundant number, since it is smaller than the sum of its proper divisors (25309470).

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

22645122 is a wasteful number, since it uses less digits than its factorization.

22645122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222033.

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

The square root of 22645122 is about 4758.6891052053. The cubic root of 22645122 is about 282.9164640839.

Adding to 22645122 its reverse (22154622), we get a palindrome (44799744).

The spelling of 22645122 in words is "twenty-two million, six hundred forty-five thousand, one hundred twenty-two".