22201220020 has 48 divisors (see below), whose sum is σ = 53339868288. Its totient is φ = 7603712640.

The previous prime is 22201220017. The next prime is 22201220033. The reversal of 22201220020 is 2002210222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47479 + ... + 216001.

It is an arithmetic number, because the mean of its divisors is an integer number (1111247256).

Almost surely, 2^22201220020 is an apocalyptic number.

22201220020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22201220020 is an abundant number, since it is smaller than the sum of its proper divisors (31138648268).

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

22201220020 is a wasteful number, since it uses less digits than its factorization.

22201220020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169480 (or 169478 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 22201220020 its reverse (2002210222), we get a palindrome (24203430242).

The spelling of 22201220020 in words is "twenty-two billion, two hundred one million, two hundred twenty thousand, twenty".