22204400040040 has 32 divisors (see below), whose sum is σ = 51121758235680. Its totient is φ = 8675207456832.

The previous prime is 22204400039989. The next prime is 22204400040061. The reversal of 22204400040040 is 4004000440222.

It is a super-2 number, since 2×22204400040040² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22204400039993 and 22204400040020.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6454765734 + ... + 6454769173.

It is an arithmetic number, because the mean of its divisors is an integer number (1597554944865).

Almost surely, 2^{22204400040040} is an apocalyptic number.

22204400040040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22204400040040 is an abundant number, since it is smaller than the sum of its proper divisors (28917358195640).

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

22204400040040 is a wasteful number, since it uses less digits than its factorization.

22204400040040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12909534961 (or 12909534957 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 22204400040040 its reverse (4004000440222), we get a palindrome (26208400480262).

The spelling of 22204400040040 in words is "twenty-two trillion, two hundred four billion, four hundred million, forty thousand, forty".