222222220101 has 72 divisors (see below), whose sum is σ = 385863645024. Its totient is φ = 122801918400.

The previous prime is 222222220093. The next prime is 222222220163. The reversal of 222222220101 is 101022222222.

222222220101 is a `hidden beast` number, since 222 + 222 + 220 + 1 + 0 + 1 = 666.

It is not a de Polignac number, because 222222220101 - 2³ = 222222220093 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222222220301) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1857250 + ... + 1973276.

It is an arithmetic number, because the mean of its divisors is an integer number (5359217292).

Almost surely, 2^222222220101 is an apocalyptic number.

222222220101 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

222222220101 is a deficient number, since it is larger than the sum of its proper divisors (163641424923).

222222220101 is a wasteful number, since it uses less digits than its factorization.

222222220101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116191 (or 116181 counting only the distinct ones).

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

Adding to 222222220101 its reverse (101022222222), we get a palindrome (323244442323).

The spelling of 222222220101 in words is "two hundred twenty-two billion, two hundred twenty-two million, two hundred twenty thousand, one hundred one".