22400145220 has 24 divisors (see below), whose sum is σ = 47085974208. Its totient is φ = 8951359200.

The previous prime is 22400145203. The next prime is 22400145241. The reversal of 22400145220 is 2254100422.

It is a junction number, because it is equal to n+sod(n) for n = 22400145191 and 22400145200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 522546 + ... + 563785.

It is an arithmetic number, because the mean of its divisors is an integer number (1961915592).

Almost surely, 2^22400145220 is an apocalyptic number.

22400145220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22400145220 is an abundant number, since it is smaller than the sum of its proper divisors (24685828988).

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

22400145220 is a wasteful number, since it uses less digits than its factorization.

22400145220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1087371 (or 1087369 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

Adding to 22400145220 its reverse (2254100422), we get a palindrome (24654245642).

The spelling of 22400145220 in words is "twenty-two billion, four hundred million, one hundred forty-five thousand, two hundred twenty".