222202100020 has 48 divisors (see below), whose sum is σ = 482967066960. Its totient is φ = 85771155456.

The previous prime is 222202099967. The next prime is 222202100077. The reversal of 222202100020 is 20001202222.

It can be written as a sum of positive squares in 8 ways, for example, as 6753881124 + 215448218896 = 82182^2 + 464164^2 .

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, 1022044 + ... + 1220236.

It is an arithmetic number, because the mean of its divisors is an integer number (10061813895).

Almost surely, 2^222202100020 is an apocalyptic number.

222202100020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222202100020 is an abundant number, since it is smaller than the sum of its proper divisors (260764966940).

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

222202100020 is a wasteful number, since it uses less digits than its factorization.

222202100020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200164 (or 200162 counting only the distinct ones).

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

Adding to 222202100020 its reverse (20001202222), we get a palindrome (242203302242).

The spelling of 222202100020 in words is "two hundred twenty-two billion, two hundred two million, one hundred thousand, twenty".