222750251 has 2 divisors, whose sum is σ = 222750252. Its totient is φ = 222750250.

The previous prime is 222750211. The next prime is 222750257. The reversal of 222750251 is 152057222.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222750251 is a prime.

It is a super-5 number, since 5×222750251⁵ (a number of 43 digits) contains 55555 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 222750251.

It is not a weakly prime, because it can be changed into another prime (222750257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111375125 + 111375126.

It is an arithmetic number, because the mean of its divisors is an integer number (111375126).

Almost surely, 2^222750251 is an apocalyptic number.

222750251 is a deficient number, since it is larger than the sum of its proper divisors (1).

222750251 is an equidigital number, since it uses as much as digits as its factorization.

222750251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 222750251 is about 14924.8199654133. The cubic root of 222750251 is about 606.1862307815.

The spelling of 222750251 in words is "two hundred twenty-two million, seven hundred fifty thousand, two hundred fifty-one".