222506972951 has 2 divisors, whose sum is σ = 222506972952. Its totient is φ = 222506972950.

The previous prime is 222506972923. The next prime is 222506972953. The reversal of 222506972951 is 159279605222.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222506972951 is a prime.

Together with 222506972953, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 222506972951.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222506972953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111253486475 + 111253486476.

It is an arithmetic number, because the mean of its divisors is an integer number (111253486476).

Almost surely, 2^222506972951 is an apocalyptic number.

222506972951 is a deficient number, since it is larger than the sum of its proper divisors (1).

222506972951 is an equidigital number, since it uses as much as digits as its factorization.

222506972951 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1360800, while the sum is 50.

The spelling of 222506972951 in words is "two hundred twenty-two billion, five hundred six million, nine hundred seventy-two thousand, nine hundred fifty-one".