22351502020 has 24 divisors (see below), whose sum is σ = 47039991768. Its totient is φ = 8921203200.

The previous prime is 22351501981. The next prime is 22351502027. The reversal of 22351502020 is 2020515322.

It can be written as a sum of positive squares in 4 ways, for example, as 442765764 + 21908736256 = 21042^2 + 148016^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22351501982 and 22351502000.

It is not an unprimeable number, because it can be changed into a prime (22351502027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1202901 + ... + 1221340.

It is an arithmetic number, because the mean of its divisors is an integer number (1959999657).

Almost surely, 2^22351502020 is an apocalyptic number.

22351502020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22351502020 is an abundant number, since it is smaller than the sum of its proper divisors (24688489748).

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

22351502020 is a wasteful number, since it uses less digits than its factorization.

22351502020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2424711 (or 2424709 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The spelling of 22351502020 in words is "twenty-two billion, three hundred fifty-one million, five hundred two thousand, twenty".