120020330331221 has 2 divisors, whose sum is σ = 120020330331222. Its totient is φ = 120020330331220.

The previous prime is 120020330331211. The next prime is 120020330331229. The reversal of 120020330331221 is 122133033020021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93208501347025 + 26811828984196 = 9654455^2 + 5178014^2 .

It is a cyclic number.

It is not a de Polignac number, because 120020330331221 - 2²⁶ = 120020263222357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120020330331229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60010165165610 + 60010165165611.

It is an arithmetic number, because the mean of its divisors is an integer number (60010165165611).

Almost surely, 2^{120020330331221} is an apocalyptic number.

It is an amenable number.

120020330331221 is a deficient number, since it is larger than the sum of its proper divisors (1).

120020330331221 is an equidigital number, since it uses as much as digits as its factorization.

120020330331221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 120020330331221 its reverse (122133033020021), we get a palindrome (242153363351242).

The spelling of 120020330331221 in words is "one hundred twenty trillion, twenty billion, three hundred thirty million, three hundred thirty-one thousand, two hundred twenty-one".