351122231 has 2 divisors, whose sum is σ = 351122232. Its totient is φ = 351122230.

The previous prime is 351122183. The next prime is 351122257. The reversal of 351122231 is 132221153.

It is a strong prime.

It is an emirp because it is prime and its reverse (132221153) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 351122231 - 2¹⁰ = 351121207 is a prime.

It is a super-2 number, since 2×351122231² = 246573642204834722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (351124231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 175561115 + 175561116.

It is an arithmetic number, because the mean of its divisors is an integer number (175561116).

Almost surely, 2^351122231 is an apocalyptic number.

351122231 is a deficient number, since it is larger than the sum of its proper divisors (1).

351122231 is an equidigital number, since it uses as much as digits as its factorization.

351122231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 360, while the sum is 20.

The square root of 351122231 is about 18738.2558153100. The cubic root of 351122231 is about 705.4822788618.

Adding to 351122231 its reverse (132221153), we get a palindrome (483343384).

The spelling of 351122231 in words is "three hundred fifty-one million, one hundred twenty-two thousand, two hundred thirty-one".