2221032231 has 80 divisors (see below), whose sum is σ = 3764699136. Its totient is φ = 1292760000.

The previous prime is 2221032181. The next prime is 2221032311. The reversal of 2221032231 is 1322301222.

It is not a de Polignac number, because 2221032231 - 2¹⁵ = 2220999463 is a prime.

It is a super-2 number, since 2×2221032231² = 9865968342281674722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221031231) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 5275401 + ... + 5275821.

Almost surely, 2^2221032231 is an apocalyptic number.

2221032231 is a deficient number, since it is larger than the sum of its proper divisors (1543666905).

2221032231 is a wasteful number, since it uses less digits than its factorization.

2221032231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666 (or 657 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2221032231 is about 47127.8286259828. The cubic root of 2221032231 is about 1304.7229058926.

Adding to 2221032231 its reverse (1322301222), we get a palindrome (3543333453).

The spelling of 2221032231 in words is "two billion, two hundred twenty-one million, thirty-two thousand, two hundred thirty-one".