22003502220 has 144 divisors (see below), whose sum is σ = 80765875008. Its totient is φ = 4733521920.

The previous prime is 22003502219. The next prime is 22003502231. The reversal of 22003502220 is 2220530022.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 22003502193 and 22003502202.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 492201 + ... + 535040.

It is an arithmetic number, because the mean of its divisors is an integer number (560874132).

Almost surely, 2^22003502220 is an apocalyptic number.

22003502220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22003502220 is an abundant number, since it is smaller than the sum of its proper divisors (58762372788).

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

22003502220 is a wasteful number, since it uses less digits than its factorization.

22003502220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1027280 (or 1027275 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The spelling of 22003502220 in words is "twenty-two billion, three million, five hundred two thousand, two hundred twenty".