200122220251 has 2 divisors, whose sum is σ = 200122220252. Its totient is φ = 200122220250.

The previous prime is 200122220197. The next prime is 200122220257. The reversal of 200122220251 is 152022221002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 200122220251 - 2¹¹ = 200122218203 is a prime.

It is not a weakly prime, because it can be changed into another prime (200122220257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100061110125 + 100061110126.

It is an arithmetic number, because the mean of its divisors is an integer number (100061110126).

Almost surely, 2^200122220251 is an apocalyptic number.

200122220251 is a deficient number, since it is larger than the sum of its proper divisors (1).

200122220251 is an equidigital number, since it uses as much as digits as its factorization.

200122220251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 320, while the sum is 19.

Adding to 200122220251 its reverse (152022221002), we get a palindrome (352144441253).

The spelling of 200122220251 in words is "two hundred billion, one hundred twenty-two million, two hundred twenty thousand, two hundred fifty-one".