22005255224420 has 48 divisors (see below), whose sum is σ = 49780078929840. Its totient is φ = 8122674802176.

The previous prime is 22005255224369. The next prime is 22005255224489. The reversal of 22005255224420 is 2442255250022.

It can be written as a sum of positive squares in 8 ways, for example, as 3911938091044 + 18093317133376 = 1977862^2 + 4253624^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11296907 + ... + 13100786.

It is an arithmetic number, because the mean of its divisors is an integer number (1037084977705).

Almost surely, 2^{22005255224420} is an apocalyptic number.

22005255224420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22005255224420 is an abundant number, since it is smaller than the sum of its proper divisors (27774823705420).

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

22005255224420 is a wasteful number, since it uses less digits than its factorization.

22005255224420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24401184 (or 24401182 counting only the distinct ones).

The product of its (nonzero) digits is 128000, while the sum is 35.

The spelling of 22005255224420 in words is "twenty-two trillion, five billion, two hundred fifty-five million, two hundred twenty-four thousand, four hundred twenty".