222102111202020 has 108 divisors (see below), whose sum is σ = 783703163843964. Its totient is φ = 50766196844160.

The previous prime is 222102111201977. The next prime is 222102111202091. The reversal of 222102111202020 is 20202111201222.

It is a happy number.

222102111202020 is a `hidden beast` number, since 22 + 210 + 211 + 1 + 20 + 202 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 69956596368036 + 152145514833984 = 8364006^2 + 12334728^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 222102111201984 and 222102111202002.

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 35 ways as a sum of consecutive naturals, for example, 12590813811 + ... + 12590831450.

It is an arithmetic number, because the mean of its divisors is an integer number (7256510776333).

Almost surely, 2^{222102111202020} is an apocalyptic number.

222102111202020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222102111202020 is an abundant number, since it is smaller than the sum of its proper divisors (561601052641944).

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

222102111202020 is a wasteful number, since it uses less digits than its factorization.

222102111202020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25181645290 (or 25181645278 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 222102111202020 its reverse (20202111201222), we get a palindrome (242304222403242).

The spelling of 222102111202020 in words is "two hundred twenty-two trillion, one hundred two billion, one hundred eleven million, two hundred two thousand, twenty".