22440202251220 has 96 divisors (see below), whose sum is σ = 53633233745280. Its totient is φ = 7818254784000.

The previous prime is 22440202251179. The next prime is 22440202251251. The reversal of 22440202251220 is 2215220204422.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7808967 + ... + 10288846.

It is an arithmetic number, because the mean of its divisors is an integer number (558679518180).

Almost surely, 2^{22440202251220} is an apocalyptic number.

22440202251220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22440202251220 is an abundant number, since it is smaller than the sum of its proper divisors (31193031494060).

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

22440202251220 is a wasteful number, since it uses less digits than its factorization.

22440202251220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18098105 (or 18098103 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 28.

Adding to 22440202251220 its reverse (2215220204422), we get a palindrome (24655422455642).

The spelling of 22440202251220 in words is "twenty-two trillion, four hundred forty billion, two hundred two million, two hundred fifty-one thousand, two hundred twenty".