122102202220121 has 2 divisors, whose sum is σ = 122102202220122. Its totient is φ = 122102202220120.

The previous prime is 122102202220081. The next prime is 122102202220169. The reversal of 122102202220121 is 121022202201221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117096529843225 + 5005672376896 = 10821115^2 + 2237336^2 .

It is a cyclic number.

It is not a de Polignac number, because 122102202220121 - 2³⁴ = 122085022350937 is a prime.

It is a super-2 number, since 2×122102202220121² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122102202220093 and 122102202220102.

It is not a weakly prime, because it can be changed into another prime (122102202220021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61051101110060 + 61051101110061.

It is an arithmetic number, because the mean of its divisors is an integer number (61051101110061).

Almost surely, 2^{122102202220121} is an apocalyptic number.

It is an amenable number.

122102202220121 is a deficient number, since it is larger than the sum of its proper divisors (1).

122102202220121 is an equidigital number, since it uses as much as digits as its factorization.

122102202220121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 122102202220121 its reverse (121022202201221), we get a palindrome (243124404421342).

The spelling of 122102202220121 in words is "one hundred twenty-two trillion, one hundred two billion, two hundred two million, two hundred twenty thousand, one hundred twenty-one".