22504144240020 has 24 divisors (see below), whose sum is σ = 63011603872224. Its totient is φ = 6001105130656.

The previous prime is 22504144240003. The next prime is 22504144240027. The reversal of 22504144240020 is 2004244140522.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a self number, because there is not a number n which added to its sum of digits gives 22504144240020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22504144240027) 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, 187534535274 + ... + 187534535393.

It is an arithmetic number, because the mean of its divisors is an integer number (2625483494676).

Almost surely, 2^{22504144240020} is an apocalyptic number.

22504144240020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22504144240020 is an abundant number, since it is smaller than the sum of its proper divisors (40507459632204).

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

22504144240020 is a wasteful number, since it uses less digits than its factorization.

22504144240020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375069070679 (or 375069070677 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 30.

Adding to 22504144240020 its reverse (2004244140522), we get a palindrome (24508388380542).

The spelling of 22504144240020 in words is "twenty-two trillion, five hundred four billion, one hundred forty-four million, two hundred forty thousand, twenty".