22011504040 has 32 divisors (see below), whose sum is σ = 49543452360. Its totient is φ = 8801478400.

The previous prime is 22011504029. The next prime is 22011504043. The reversal of 22011504040 is 4040511022.

It can be written as a sum of positive squares in 4 ways, for example, as 11479408164 + 10532095876 = 107142^2 + 102626^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22011503999 and 22011504017.

It is not an unprimeable number, because it can be changed into a prime (22011504043) 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, 18270 + ... + 210610.

Almost surely, 2^22011504040 is an apocalyptic number.

22011504040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22011504040 is an abundant number, since it is smaller than the sum of its proper divisors (27531948320).

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

22011504040 is a wasteful number, since it uses less digits than its factorization.

22011504040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195213 (or 195209 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The spelling of 22011504040 in words is "twenty-two billion, eleven million, five hundred four thousand, forty".