2221113431 has 2 divisors, whose sum is σ = 2221113432. Its totient is φ = 2221113430.

The previous prime is 2221113413. The next prime is 2221113457. The reversal of 2221113431 is 1343111222.

Together with previous prime (2221113413) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2221113431 - 2³⁰ = 1147371607 is a prime.

It is a super-2 number, since 2×2221113431² = 9866689746737183522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2221113491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110556715 + 1110556716.

It is an arithmetic number, because the mean of its divisors is an integer number (1110556716).

Almost surely, 2^2221113431 is an apocalyptic number.

2221113431 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221113431 is an equidigital number, since it uses as much as digits as its factorization.

2221113431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 288, while the sum is 20.

The square root of 2221113431 is about 47128.6901048608. The cubic root of 2221113431 is about 1304.7388057382.

Adding to 2221113431 its reverse (1343111222), we get a palindrome (3564224653).

The spelling of 2221113431 in words is "two billion, two hundred twenty-one million, one hundred thirteen thousand, four hundred thirty-one".