2131222132 has 12 divisors (see below), whose sum is σ = 4016534116. Its totient is φ = 983640960.

The previous prime is 2131222117. The next prime is 2131222183. The reversal of 2131222132 is 2312221312.

It can be written as a sum of positive squares in 2 ways, for example, as 852873616 + 1278348516 = 29204^2 + 35754^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20492469 + ... + 20492572.

Almost surely, 2^2131222132 is an apocalyptic number.

It is an amenable number.

2131222132 is a deficient number, since it is larger than the sum of its proper divisors (1885311984).

2131222132 is a wasteful number, since it uses less digits than its factorization.

2131222132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40985058 (or 40985056 counting only the distinct ones).

The product of its digits is 288, while the sum is 19.

The square root of 2131222132 is about 46165.1614531997. The cubic root of 2131222132 is about 1286.8943846315.

Adding to 2131222132 its reverse (2312221312), we get a palindrome (4443443444).

The spelling of 2131222132 in words is "two billion, one hundred thirty-one million, two hundred twenty-two thousand, one hundred thirty-two".