2221130331 has 12 divisors (see below), whose sum is σ = 3666627952. Its totient is φ = 1269217296.

The previous prime is 2221130323. The next prime is 2221130357. The reversal of 2221130331 is 1330311222.

2221130331 is a `hidden beast` number, since 222 + 113 + 0 + 331 = 666.

It is not a de Polignac number, because 2221130331 - 2³ = 2221130323 is a prime.

It is a super-2 number, since 2×2221130331² = 9866839894576339122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2221130321) 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, 17627956 + ... + 17628081.

Almost surely, 2^2221130331 is an apocalyptic number.

2221130331 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2221130331 is a deficient number, since it is larger than the sum of its proper divisors (1445497621).

2221130331 is a wasteful number, since it uses less digits than its factorization.

2221130331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35256050 (or 35256047 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 2221130331 is about 47128.8694008248. The cubic root of 2221130331 is about 1304.7421148938.

Adding to 2221130331 its reverse (1330311222), we get a palindrome (3551441553).

The spelling of 2221130331 in words is "two billion, two hundred twenty-one million, one hundred thirty thousand, three hundred thirty-one".