2221331351 has 2 divisors, whose sum is σ = 2221331352. Its totient is φ = 2221331350.

The previous prime is 2221331341. The next prime is 2221331353. The reversal of 2221331351 is 1531331222.

2221331351 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2221331351 is a prime.

Together with 2221331353, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2221331353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110665675 + 1110665676.

It is an arithmetic number, because the mean of its divisors is an integer number (1110665676).

Almost surely, 2^2221331351 is an apocalyptic number.

2221331351 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221331351 is an equidigital number, since it uses as much as digits as its factorization.

2221331351 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1080, while the sum is 23.

The square root of 2221331351 is about 47131.0020156584. The cubic root of 2221331351 is about 1304.7814749356.

Adding to 2221331351 its reverse (1531331222), we get a palindrome (3752662573).

The spelling of 2221331351 in words is "two billion, two hundred twenty-one million, three hundred thirty-one thousand, three hundred fifty-one".