222222110200020 has 72 divisors (see below), whose sum is σ = 770369982031104. Its totient is φ = 50793625188288.

The previous prime is 222222110199977. The next prime is 222222110200031. The reversal of 222222110200020 is 20002011222222.

222222110200020 is a `hidden beast` number, since 2 + 222 + 221 + 1 + 0 + 200 + 0 + 20 = 666.

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 = 222222110199966 and 222222110200002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 88183375804 + ... + 88183378323.

Almost surely, 2^{222222110200020} is an apocalyptic number.

222222110200020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222222110200020 is an abundant number, since it is smaller than the sum of its proper divisors (548147871831084).

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

222222110200020 is a wasteful number, since it uses less digits than its factorization.

222222110200020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176366754149 (or 176366754144 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 222222110200020 its reverse (20002011222222), we get a palindrome (242224121422242).

The spelling of 222222110200020 in words is "two hundred twenty-two trillion, two hundred twenty-two billion, one hundred ten million, two hundred thousand, twenty".