122120213113 has 2 divisors, whose sum is σ = 122120213114. Its totient is φ = 122120213112.

The previous prime is 122120213107. The next prime is 122120213147. The reversal of 122120213113 is 311312021221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 88787312784 + 33332900329 = 297972^2 + 182573^2 .

It is a cyclic number.

It is not a de Polignac number, because 122120213113 - 2⁵ = 122120213081 is a prime.

It is not a weakly prime, because it can be changed into another prime (122120211113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61060106556 + 61060106557.

It is an arithmetic number, because the mean of its divisors is an integer number (61060106557).

Almost surely, 2^122120213113 is an apocalyptic number.

It is an amenable number.

122120213113 is a deficient number, since it is larger than the sum of its proper divisors (1).

122120213113 is an equidigital number, since it uses as much as digits as its factorization.

122120213113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 122120213113 its reverse (311312021221), we get a palindrome (433432234334).

The spelling of 122120213113 in words is "one hundred twenty-two billion, one hundred twenty million, two hundred thirteen thousand, one hundred thirteen".