22052543220 has 60 divisors (see below), whose sum is σ = 69179649924. Its totient is φ = 5880677760.

The previous prime is 22052543179. The next prime is 22052543231. The reversal of 22052543220 is 2234525022.

22052543220 is a `hidden beast` number, since 2 + 205 + 2 + 5 + 432 + 20 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 11194486416 + 10858056804 = 105804^2 + 104202^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6804721 + ... + 6807960.

Almost surely, 2^22052543220 is an apocalyptic number.

22052543220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22052543220 is an abundant number, since it is smaller than the sum of its proper divisors (47127106704).

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

22052543220 is a wasteful number, since it uses less digits than its factorization.

22052543220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13612702 (or 13612691 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The spelling of 22052543220 in words is "twenty-two billion, fifty-two million, five hundred forty-three thousand, two hundred twenty".