222123120251 has 2 divisors, whose sum is σ = 222123120252. Its totient is φ = 222123120250.

The previous prime is 222123120223. The next prime is 222123120281. The reversal of 222123120251 is 152021321222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222123120251 - 2³⁴ = 204943251067 is a prime.

It is not a weakly prime, because it can be changed into another prime (222123120281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111061560125 + 111061560126.

It is an arithmetic number, because the mean of its divisors is an integer number (111061560126).

Almost surely, 2^222123120251 is an apocalyptic number.

222123120251 is a deficient number, since it is larger than the sum of its proper divisors (1).

222123120251 is an equidigital number, since it uses as much as digits as its factorization.

222123120251 is an evil number, because the sum of its binary digits is even.

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

Adding to 222123120251 its reverse (152021321222), we get a palindrome (374144441473).

The spelling of 222123120251 in words is "two hundred twenty-two billion, one hundred twenty-three million, one hundred twenty thousand, two hundred fifty-one".