122102202102121 has 2 divisors, whose sum is σ = 122102202102122. Its totient is φ = 122102202102120.

The previous prime is 122102202102113. The next prime is 122102202102197. The reversal of 122102202102121 is 121201202201221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101158435640025 + 20943766462096 = 10057755^2 + 4576436^2 .

It is an emirp because it is prime and its reverse (121201202201221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122102202102121 - 2³ = 122102202102113 is a prime.

It is not a weakly prime, because it can be changed into another prime (122102202102521) 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, 61051101051060 + 61051101051061.

It is an arithmetic number, because the mean of its divisors is an integer number (61051101051061).

Almost surely, 2^{122102202102121} is an apocalyptic number.

It is an amenable number.

122102202102121 is a deficient number, since it is larger than the sum of its proper divisors (1).

122102202102121 is an equidigital number, since it uses as much as digits as its factorization.

122102202102121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 122102202102121 its reverse (121201202201221), we get a palindrome (243303404303342).

The spelling of 122102202102121 in words is "one hundred twenty-two trillion, one hundred two billion, two hundred two million, one hundred two thousand, one hundred twenty-one".