22520223520 has 24 divisors (see below), whose sum is σ = 53204028444. Its totient is φ = 9008089344.

The previous prime is 22520223449. The next prime is 22520223529. The reversal of 22520223520 is 2532202522.

It can be written as a sum of positive squares in 2 ways, for example, as 22104552976 + 415670544 = 148676^2 + 20388^2 .

It is a super-2 number, since 2×22520223520² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22520223529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70375539 + ... + 70375858.

Almost surely, 2^22520223520 is an apocalyptic number.

22520223520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22520223520 is an abundant number, since it is smaller than the sum of its proper divisors (30683804924).

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

22520223520 is a wasteful number, since it uses less digits than its factorization.

22520223520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140751412 (or 140751404 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The spelling of 22520223520 in words is "twenty-two billion, five hundred twenty million, two hundred twenty-three thousand, five hundred twenty".