122000200021121 has 2 divisors, whose sum is σ = 122000200021122. Its totient is φ = 122000200021120.

The previous prime is 122000200020997. The next prime is 122000200021123. The reversal of 122000200021121 is 121120002000221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 110773941006400 + 11226259014721 = 10524920^2 + 3350561^2 .

It is a cyclic number.

It is not a de Polignac number, because 122000200021121 - 2³⁸ = 121725322114177 is a prime.

Together with 122000200021123, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 122000200021096 and 122000200021105.

It is not a weakly prime, because it can be changed into another prime (122000200021123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61000100010560 + 61000100010561.

It is an arithmetic number, because the mean of its divisors is an integer number (61000100010561).

Almost surely, 2^{122000200021121} is an apocalyptic number.

It is an amenable number.

122000200021121 is a deficient number, since it is larger than the sum of its proper divisors (1).

122000200021121 is an equidigital number, since it uses as much as digits as its factorization.

122000200021121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 122000200021121 its reverse (121120002000221), we get a palindrome (243120202021342).

The spelling of 122000200021121 in words is "one hundred twenty-two trillion, two hundred million, twenty-one thousand, one hundred twenty-one".