222131122132 has 24 divisors (see below), whose sum is σ = 417234212136. Its totient is φ = 103100341248.

The previous prime is 222131122123. The next prime is 222131122219. The reversal of 222131122132 is 231221131222.

It can be written as a sum of positive squares in 4 ways, for example, as 18841954756 + 203289167376 = 137266^2 + 450876^2 .

It is a congruent number.

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, 22369243 + ... + 22379170.

It is an arithmetic number, because the mean of its divisors is an integer number (17384758839).

Almost surely, 2^222131122132 is an apocalyptic number.

It is an amenable number.

222131122132 is a deficient number, since it is larger than the sum of its proper divisors (195103090004).

222131122132 is a wasteful number, since it uses less digits than its factorization.

222131122132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44748507 (or 44748505 counting only the distinct ones).

The product of its digits is 576, while the sum is 22.

Adding to 222131122132 its reverse (231221131222), we get a palindrome (453352253354).

The spelling of 222131122132 in words is "two hundred twenty-two billion, one hundred thirty-one million, one hundred twenty-two thousand, one hundred thirty-two".