22520420285 has 16 divisors (see below), whose sum is σ = 31215471552. Its totient is φ = 15415046400.

The previous prime is 22520420267. The next prime is 22520420287. The reversal of 22520420285 is 58202402522.

It is not a de Polignac number, because 22520420285 - 2²⁰ = 22519371709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22520420287) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12042071 + ... + 12043940.

It is an arithmetic number, because the mean of its divisors is an integer number (1950966972).

Almost surely, 2^22520420285 is an apocalyptic number.

It is an amenable number.

22520420285 is a deficient number, since it is larger than the sum of its proper divisors (8695051267).

22520420285 is a wasteful number, since it uses less digits than its factorization.

22520420285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24086044.

The product of its (nonzero) digits is 25600, while the sum is 32.

The spelling of 22520420285 in words is "twenty-two billion, five hundred twenty million, four hundred twenty thousand, two hundred eighty-five".