122003221121 has 2 divisors, whose sum is σ = 122003221122. Its totient is φ = 122003221120.

The previous prime is 122003221069. The next prime is 122003221147. The reversal of 122003221121 is 121122300221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118573479025 + 3429742096 = 344345^2 + 58564^2 .

It is a cyclic number.

It is not a de Polignac number, because 122003221121 - 2²² = 121999026817 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122003221121.

It is not a weakly prime, because it can be changed into another prime (122003221621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61001610560 + 61001610561.

It is an arithmetic number, because the mean of its divisors is an integer number (61001610561).

Almost surely, 2^122003221121 is an apocalyptic number.

It is an amenable number.

122003221121 is a deficient number, since it is larger than the sum of its proper divisors (1).

122003221121 is an equidigital number, since it uses as much as digits as its factorization.

122003221121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 122003221121 its reverse (121122300221), we get a palindrome (243125521342).

The spelling of 122003221121 in words is "one hundred twenty-two billion, three million, two hundred twenty-one thousand, one hundred twenty-one".