120200122110221 has 2 divisors, whose sum is σ = 120200122110222. Its totient is φ = 120200122110220.

The previous prime is 120200122110209. The next prime is 120200122110223. The reversal of 120200122110221 is 122011221002021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119195867594596 + 1004254515625 = 10917686^2 + 1002125^2 .

It is a cyclic number.

It is not a de Polignac number, because 120200122110221 - 2⁴² = 115802075599117 is a prime.

It is a Sophie Germain prime.

Together with 120200122110223, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 120200122110221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120200122110223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60100061055110 + 60100061055111.

It is an arithmetic number, because the mean of its divisors is an integer number (60100061055111).

Almost surely, 2^{120200122110221} is an apocalyptic number.

It is an amenable number.

120200122110221 is a deficient number, since it is larger than the sum of its proper divisors (1).

120200122110221 is an equidigital number, since it uses as much as digits as its factorization.

120200122110221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 120200122110221 its reverse (122011221002021), we get a palindrome (242211343112242).

The spelling of 120200122110221 in words is "one hundred twenty trillion, two hundred billion, one hundred twenty-two million, one hundred ten thousand, two hundred twenty-one".