22222198020 has 48 divisors (see below), whose sum is σ = 67878715968. Its totient is φ = 5387199360.

The previous prime is 22222198013. The next prime is 22222198021. The reversal of 22222198020 is 2089122222.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (22222198021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16834339 + ... + 16835658.

It is an arithmetic number, because the mean of its divisors is an integer number (1414139916).

Almost surely, 2^22222198020 is an apocalyptic number.

22222198020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22222198020 is an abundant number, since it is smaller than the sum of its proper divisors (45656517948).

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

22222198020 is a wasteful number, since it uses less digits than its factorization.

22222198020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33670020 (or 33670018 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The spelling of 22222198020 in words is "twenty-two billion, two hundred twenty-two million, one hundred ninety-eight thousand, twenty".