226622251 has 2 divisors, whose sum is σ = 226622252. Its totient is φ = 226622250.

The previous prime is 226622237. The next prime is 226622261. The reversal of 226622251 is 152226622.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 226622251 - 2⁵ = 226622219 is a prime.

It is not a weakly prime, because it can be changed into another prime (226622261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113311125 + 113311126.

It is an arithmetic number, because the mean of its divisors is an integer number (113311126).

Almost surely, 2^226622251 is an apocalyptic number.

226622251 is a deficient number, since it is larger than the sum of its proper divisors (1).

226622251 is an equidigital number, since it uses as much as digits as its factorization.

226622251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5760, while the sum is 28.

The square root of 226622251 is about 15053.9779128309. The cubic root of 226622251 is about 609.6784572517.

Adding to 226622251 its reverse (152226622), we get a palindrome (378848873).

The spelling of 226622251 in words is "two hundred twenty-six million, six hundred twenty-two thousand, two hundred fifty-one".