22506022 has 32 divisors (see below), whose sum is σ = 42819840. Its totient is φ = 8616480.

The previous prime is 22506019. The next prime is 22506023. The reversal of 22506022 is 22060522.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22506023) 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, 7848 + ... + 10324.

It is an arithmetic number, because the mean of its divisors is an integer number (1338120).

Almost surely, 2^22506022 is an apocalyptic number.

22506022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22506022 is a deficient number, since it is larger than the sum of its proper divisors (20313818).

22506022 is a wasteful number, since it uses less digits than its factorization.

22506022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2556.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 22506022 is about 4744.0512223204. The cubic root of 22506022 is about 282.3359927242.

Adding to 22506022 its reverse (22060522), we get a palindrome (44566544).

The spelling of 22506022 in words is "twenty-two million, five hundred six thousand, twenty-two".