22400040220 has 24 divisors (see below), whose sum is σ = 48662157600. Its totient is φ = 8651049792.

The previous prime is 22400040217. The next prime is 22400040263. The reversal of 22400040220 is 2204000422.

It is a junction number, because it is equal to n+sod(n) for n = 22400040194 and 22400040203.

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 7 ways as a sum of consecutive naturals, for example, 19309800 + ... + 19310959.

It is an arithmetic number, because the mean of its divisors is an integer number (2027589900).

Almost surely, 2^22400040220 is an apocalyptic number.

22400040220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22400040220 is an abundant number, since it is smaller than the sum of its proper divisors (26262117380).

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

22400040220 is a wasteful number, since it uses less digits than its factorization.

22400040220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38620797 (or 38620795 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

Adding to 22400040220 its reverse (2204000422), we get a palindrome (24604040642).

It can be divided in two parts, 224000402 and 20, that added together give a palindrome (224000422).

The spelling of 22400040220 in words is "twenty-two billion, four hundred million, forty thousand, two hundred twenty".