22003640220 has 48 divisors (see below), whose sum is σ = 61616636928. Its totient is φ = 5867023680.

The previous prime is 22003640173. The next prime is 22003640291. The reversal of 22003640220 is 2204630022.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1077505 + ... + 1097735.

It is an arithmetic number, because the mean of its divisors is an integer number (1283679936).

Almost surely, 2^22003640220 is an apocalyptic number.

22003640220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22003640220 is an abundant number, since it is smaller than the sum of its proper divisors (39612996708).

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

22003640220 is a wasteful number, since it uses less digits than its factorization.

22003640220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38370 (or 38368 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The spelling of 22003640220 in words is "twenty-two billion, three million, six hundred forty thousand, two hundred twenty".