222222102120 has 192 divisors, whose sum is σ = 785373984720. Its totient is φ = 54265946112.

The previous prime is 222222102119. The next prime is 222222102127. The reversal of 222222102120 is 21201222222.

222222102120 is a `hidden beast` number, since 22 + 222 + 210 + 212 + 0 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 125031545604 + 97190556516 = 353598^2 + 311754^2 .

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 = 222222102093 and 222222102102.

It is not an unprimeable number, because it can be changed into a prime (222222102127) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 264247 + ... + 717126.

Almost surely, 2^222222102120 is an apocalyptic number.

222222102120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222222102120 is an abundant number, since it is smaller than the sum of its proper divisors (563151882600).

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

222222102120 is a wasteful number, since it uses less digits than its factorization.

222222102120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 981444 (or 981437 counting only the distinct ones).

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

Adding to 222222102120 its reverse (21201222222), we get a palindrome (243423324342).

It can be divided in two parts, 222222102 and 120, that added together give a palindrome (222222222).

The spelling of 222222102120 in words is "two hundred twenty-two billion, two hundred twenty-two million, one hundred two thousand, one hundred twenty".