122001010121 has 2 divisors, whose sum is σ = 122001010122. Its totient is φ = 122001010120.

The previous prime is 122001010073. The next prime is 122001010139. The reversal of 122001010121 is 121010100221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120800734096 + 1200276025 = 347564^2 + 34645^2 .

It is a cyclic number.

It is not a de Polignac number, because 122001010121 - 2¹⁸ = 122000747977 is a prime.

It is not a weakly prime, because it can be changed into another prime (122001010171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61000505060 + 61000505061.

It is an arithmetic number, because the mean of its divisors is an integer number (61000505061).

Almost surely, 2^122001010121 is an apocalyptic number.

It is an amenable number.

122001010121 is a deficient number, since it is larger than the sum of its proper divisors (1).

122001010121 is an equidigital number, since it uses as much as digits as its factorization.

122001010121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 122001010121 its reverse (121010100221), we get a palindrome (243011110342).

The spelling of 122001010121 in words is "one hundred twenty-two billion, one million, ten thousand, one hundred twenty-one".