2221362131 has 2 divisors, whose sum is σ = 2221362132. Its totient is φ = 2221362130.

The previous prime is 2221362127. The next prime is 2221362151. The reversal of 2221362131 is 1312631222.

2221362131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2221362131 - 2² = 2221362127 is a prime.

It is a super-2 number, since 2×2221362131² = 9868899434081722322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 2221362097 and 2221362106.

It is not a weakly prime, because it can be changed into another prime (2221362151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110681065 + 1110681066.

It is an arithmetic number, because the mean of its divisors is an integer number (1110681066).

Almost surely, 2^2221362131 is an apocalyptic number.

2221362131 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221362131 is an equidigital number, since it uses as much as digits as its factorization.

2221362131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864, while the sum is 23.

The square root of 2221362131 is about 47131.3285511877. The cubic root of 2221362131 is about 1304.7875014999.

Adding to 2221362131 its reverse (1312631222), we get a palindrome (3533993353).

The spelling of 2221362131 in words is "two billion, two hundred twenty-one million, three hundred sixty-two thousand, one hundred thirty-one".