122212211951 has 2 divisors, whose sum is σ = 122212211952. Its totient is φ = 122212211950.

The previous prime is 122212211903. The next prime is 122212212007. The reversal of 122212211951 is 159112212221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122212211951 - 2¹⁰ = 122212210927 is a prime.

It is a super-2 number, since 2×122212211951² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122212211351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61106105975 + 61106105976.

It is an arithmetic number, because the mean of its divisors is an integer number (61106105976).

Almost surely, 2^122212211951 is an apocalyptic number.

122212211951 is a deficient number, since it is larger than the sum of its proper divisors (1).

122212211951 is an equidigital number, since it uses as much as digits as its factorization.

122212211951 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1440, while the sum is 29.

The spelling of 122212211951 in words is "one hundred twenty-two billion, two hundred twelve million, two hundred eleven thousand, nine hundred fifty-one".