1200122102321 has 2 divisors, whose sum is σ = 1200122102322. Its totient is φ = 1200122102320.

The previous prime is 1200122102281. The next prime is 1200122102329. The reversal of 1200122102321 is 1232012210021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1200120250000 + 1852321 = 1095500^2 + 1361^2 .

It is an emirp because it is prime and its reverse (1232012210021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1200122102321 - 2²⁶ = 1200054993457 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1200122102321.

It is not a weakly prime, because it can be changed into another prime (1200122102329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600061051160 + 600061051161.

It is an arithmetic number, because the mean of its divisors is an integer number (600061051161).

Almost surely, 2^{1200122102321} is an apocalyptic number.

It is an amenable number.

1200122102321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200122102321 is an equidigital number, since it uses as much as digits as its factorization.

1200122102321 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 1200122102321 its reverse (1232012210021), we get a palindrome (2432134312342).

The spelling of 1200122102321 in words is "one trillion, two hundred billion, one hundred twenty-two million, one hundred two thousand, three hundred twenty-one".