222112122 has 16 divisors (see below), whose sum is σ = 448156800. Its totient is φ = 73381952.

The previous prime is 222112087. The next prime is 222112141. The reversal of 222112122 is 221211222.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163122 + ... + 164477.

It is an arithmetic number, because the mean of its divisors is an integer number (28009800).

Almost surely, 2^222112122 is an apocalyptic number.

222112122 is an abundant number, since it is smaller than the sum of its proper divisors (226044678).

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

222112122 is a wasteful number, since it uses less digits than its factorization.

222112122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327717.

The product of its digits is 64, while the sum is 15.

The square root of 222112122 is about 14903.4265187574. The cubic root of 222112122 is about 605.6068150619.

Adding to 222112122 its reverse (221211222), we get a palindrome (443323344).

It can be divided in two parts, 2221 and 12122, that multiplied together give a palindrome (26922962).

The spelling of 222112122 in words is "two hundred twenty-two million, one hundred twelve thousand, one hundred twenty-two".