222112131 has 16 divisors (see below), whose sum is σ = 308582400. Its totient is φ = 141932448.

The previous prime is 222112087. The next prime is 222112141. The reversal of 222112131 is 131211222.

222112131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 222112131 - 2⁷ = 222112003 is a prime.

It is a super-2 number, since 2×222112131² = 98667597474722322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 222112131.

It is not an unprimeable number, because it can be changed into a prime (222112141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2910 + ... + 21276.

It is an arithmetic number, because the mean of its divisors is an integer number (19286400).

Almost surely, 2^222112131 is an apocalyptic number.

222112131 is a deficient number, since it is larger than the sum of its proper divisors (86470269).

222112131 is a wasteful number, since it uses less digits than its factorization.

222112131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18538.

The product of its digits is 48, while the sum is 15.

The square root of 222112131 is about 14903.4268207013. The cubic root of 222112131 is about 605.6068232416.

Adding to 222112131 its reverse (131211222), we get a palindrome (353323353).

Subtracting from 222112131 its reverse (131211222), we obtain a palindrome (90900909).

It can be divided in two parts, 22211 and 2131, that added together give a palindrome (24342).

The spelling of 222112131 in words is "two hundred twenty-two million, one hundred twelve thousand, one hundred thirty-one".