222001122222 has 64 divisors (see below), whose sum is σ = 538240331520. Its totient is φ = 67266093600.

The previous prime is 222001122181. The next prime is 222001122241. The reversal of 222001122222 is 222221100222.

222001122222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 222001122195 and 222001122204.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 10760697 + ... + 10781307.

It is an arithmetic number, because the mean of its divisors is an integer number (8410005180).

Almost surely, 2^222001122222 is an apocalyptic number.

222001122222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

222001122222 is an abundant number, since it is smaller than the sum of its proper divisors (316239209298).

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

222001122222 is a wasteful number, since it uses less digits than its factorization.

222001122222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38766 (or 38760 counting only the distinct ones).

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

Adding to 222001122222 its reverse (222221100222), we get a palindrome (444222222444).

The spelling of 222001122222 in words is "two hundred twenty-two billion, one million, one hundred twenty-two thousand, two hundred twenty-two".