222142131 has 12 divisors (see below), whose sum is σ = 324478440. Its totient is φ = 146430240.

The previous prime is 222142121. The next prime is 222142147. The reversal of 222142131 is 131241222.

It is a happy number.

It is not a de Polignac number, because 222142131 - 2⁵ = 222142099 is a prime.

It is a super-2 number, since 2×222142131² = 98694252730442322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (222142121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 137865 + ... + 139466.

It is an arithmetic number, because the mean of its divisors is an integer number (27039870).

Almost surely, 2^222142131 is an apocalyptic number.

222142131 is a deficient number, since it is larger than the sum of its proper divisors (102336309).

222142131 is a wasteful number, since it uses less digits than its factorization.

222142131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277426 (or 277423 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 222142131 is about 14904.4332666492. The cubic root of 222142131 is about 605.6340878289.

Adding to 222142131 its reverse (131241222), we get a palindrome (353383353).

Subtracting from 222142131 its reverse (131241222), we obtain a palindrome (90900909).

The spelling of 222142131 in words is "two hundred twenty-two million, one hundred forty-two thousand, one hundred thirty-one".