222261251 has 2 divisors, whose sum is σ = 222261252. Its totient is φ = 222261250.

The previous prime is 222261239. The next prime is 222261271. The reversal of 222261251 is 152162222.

222261251 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 222261251 - 2⁶ = 222261187 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (222261211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111130625 + 111130626.

It is an arithmetic number, because the mean of its divisors is an integer number (111130626).

Almost surely, 2^222261251 is an apocalyptic number.

222261251 is a deficient number, since it is larger than the sum of its proper divisors (1).

222261251 is an equidigital number, since it uses as much as digits as its factorization.

222261251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 960, while the sum is 23.

The square root of 222261251 is about 14908.4288575289. The cubic root of 222261251 is about 605.7423221995.

The spelling of 222261251 in words is "two hundred twenty-two million, two hundred sixty-one thousand, two hundred fifty-one".