22122623164240 has 20 divisors (see below), whose sum is σ = 51435098857044. Its totient is φ = 8849049265664.

The previous prime is 22122623164237. The next prime is 22122623164247. The reversal of 22122623164240 is 4246132622122.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6291328095504 + 15831295068736 = 2508252^2 + 3978856^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 22122623164240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22122623164247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138266394697 + ... + 138266394856.

Almost surely, 2^{22122623164240} is an apocalyptic number.

22122623164240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22122623164240 is an abundant number, since it is smaller than the sum of its proper divisors (29312475692804).

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

22122623164240 is a wasteful number, since it uses less digits than its factorization.

22122623164240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276532789566 (or 276532789560 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 37.

Adding to 22122623164240 its reverse (4246132622122), we get a palindrome (26368755786362).

The spelling of 22122623164240 in words is "twenty-two trillion, one hundred twenty-two billion, six hundred twenty-three million, one hundred sixty-four thousand, two hundred forty".