122120212013 has 2 divisors, whose sum is σ = 122120212014. Its totient is φ = 122120212012.

The previous prime is 122120212007. The next prime is 122120212021. The reversal of 122120212013 is 310212021221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 105704965129 + 16415246884 = 325123^2 + 128122^2 .

It is a cyclic number.

It is not a de Polignac number, because 122120212013 - 2⁸ = 122120211757 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122120211982 and 122120212000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122120212063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61060106006 + 61060106007.

It is an arithmetic number, because the mean of its divisors is an integer number (61060106007).

Almost surely, 2^122120212013 is an apocalyptic number.

It is an amenable number.

122120212013 is a deficient number, since it is larger than the sum of its proper divisors (1).

122120212013 is an equidigital number, since it uses as much as digits as its factorization.

122120212013 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 122120212013 its reverse (310212021221), we get a palindrome (432332233234).

The spelling of 122120212013 in words is "one hundred twenty-two billion, one hundred twenty million, two hundred twelve thousand, thirteen".