22003233220 has 24 divisors (see below), whose sum is σ = 47800128600. Its totient is φ = 8497800192.

The previous prime is 22003233211. The next prime is 22003233251. The reversal of 22003233220 is 2233230022.

It can be written as a sum of positive squares in 4 ways, for example, as 169624576 + 21833608644 = 13024^2 + 147762^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18967725 + ... + 18968884.

It is an arithmetic number, because the mean of its divisors is an integer number (1991672025).

Almost surely, 2^22003233220 is an apocalyptic number.

22003233220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22003233220 is an abundant number, since it is smaller than the sum of its proper divisors (25796895380).

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

22003233220 is a wasteful number, since it uses less digits than its factorization.

22003233220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37936647 (or 37936645 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 19.

Adding to 22003233220 its reverse (2233230022), we get a palindrome (24236463242).

The spelling of 22003233220 in words is "twenty-two billion, three million, two hundred thirty-three thousand, two hundred twenty".