22115352040 has 64 divisors (see below), whose sum is σ = 50718422160. Its totient is φ = 8677294080.

The previous prime is 22115352023. The next prime is 22115352047. The reversal of 22115352040 is 4025351122.

It can be written as a sum of positive squares in 8 ways, for example, as 6569750916 + 15545601124 = 81054^2 + 124682^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22115351996 and 22115352014.

It is not an unprimeable number, because it can be changed into a prime (22115352047) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 413220 + ... + 463660.

Almost surely, 2^22115352040 is an apocalyptic number.

22115352040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22115352040 is an abundant number, since it is smaller than the sum of its proper divisors (28603070120).

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

22115352040 is a wasteful number, since it uses less digits than its factorization.

22115352040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50662 (or 50658 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The spelling of 22115352040 in words is "twenty-two billion, one hundred fifteen million, three hundred fifty-two thousand, forty".