122212374947899 has 2 divisors, whose sum is σ = 122212374947900. Its totient is φ = 122212374947898.

The previous prime is 122212374947891. The next prime is 122212374947911. The reversal of 122212374947899 is 998749473212221.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122212374947899 - 2³ = 122212374947891 is a prime.

It is a super-2 number, since 2×122212374947899² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (122212374947891) 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, 61106187473949 + 61106187473950.

It is an arithmetic number, because the mean of its divisors is an integer number (61106187473950).

Almost surely, 2^{122212374947899} is an apocalyptic number.

122212374947899 is a deficient number, since it is larger than the sum of its proper divisors (1).

122212374947899 is an equidigital number, since it uses as much as digits as its factorization.

122212374947899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 219469824, while the sum is 70.

The spelling of 122212374947899 in words is "one hundred twenty-two trillion, two hundred twelve billion, three hundred seventy-four million, nine hundred forty-seven thousand, eight hundred ninety-nine".