2221132131 has 16 divisors (see below), whose sum is σ = 3320759200. Its totient is φ = 1467167904.

The previous prime is 2221132087. The next prime is 2221132141. The reversal of 2221132131 is 1312311222.

It is not a de Polignac number, because 2221132131 - 2¹³ = 2221123939 is a prime.

It is a super-2 number, since 2×2221132131² = 9866855886721202322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2221132141) 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, 374416 + ... + 380301.

It is an arithmetic number, because the mean of its divisors is an integer number (207547450).

Almost surely, 2^2221132131 is an apocalyptic number.

2221132131 is a deficient number, since it is larger than the sum of its proper divisors (1099627069).

2221132131 is a wasteful number, since it uses less digits than its factorization.

2221132131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754835 (or 754829 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 2221132131 is about 47128.8884973962. Note that the first 3 decimals coincide. The cubic root of 2221132131 is about 1304.7424673473.

Adding to 2221132131 its reverse (1312311222), we get a palindrome (3533443353).

The spelling of 2221132131 in words is "two billion, two hundred twenty-one million, one hundred thirty-two thousand, one hundred thirty-one".