222320220251 has 2 divisors, whose sum is σ = 222320220252. Its totient is φ = 222320220250.

The previous prime is 222320220203. The next prime is 222320220299. The reversal of 222320220251 is 152022023222.

222320220251 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (222320220203) and next prime (222320220299).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222320220251 is a prime.

It is not a weakly prime, because it can be changed into another prime (222320220151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111160110125 + 111160110126.

It is an arithmetic number, because the mean of its divisors is an integer number (111160110126).

Almost surely, 2^222320220251 is an apocalyptic number.

222320220251 is a deficient number, since it is larger than the sum of its proper divisors (1).

222320220251 is an equidigital number, since it uses as much as digits as its factorization.

222320220251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 23.

Adding to 222320220251 its reverse (152022023222), we get a palindrome (374342243473).

The spelling of 222320220251 in words is "two hundred twenty-two billion, three hundred twenty million, two hundred twenty thousand, two hundred fifty-one".