122021112210149 has 2 divisors, whose sum is σ = 122021112210150. Its totient is φ = 122021112210148.

The previous prime is 122021112210119. The next prime is 122021112210169. The reversal of 122021112210149 is 941012211120221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 94600075230049 + 27421036980100 = 9726257^2 + 5236510^2 .

It is an emirp because it is prime and its reverse (941012211120221) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122021112210149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122021112210119) 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, 61010556105074 + 61010556105075.

It is an arithmetic number, because the mean of its divisors is an integer number (61010556105075).

Almost surely, 2^{122021112210149} is an apocalyptic number.

It is an amenable number.

122021112210149 is a deficient number, since it is larger than the sum of its proper divisors (1).

122021112210149 is an equidigital number, since it uses as much as digits as its factorization.

122021112210149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 29.

The spelling of 122021112210149 in words is "one hundred twenty-two trillion, twenty-one billion, one hundred twelve million, two hundred ten thousand, one hundred forty-nine".