122012122013 has 2 divisors, whose sum is σ = 122012122014. Its totient is φ = 122012122012.

The previous prime is 122012122009. The next prime is 122012122049. The reversal of 122012122013 is 310221210221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85008982969 + 37003139044 = 291563^2 + 192362^2 .

It is a cyclic number.

It is not a de Polignac number, because 122012122013 - 2² = 122012122009 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 122012121982 and 122012122000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122012122213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61006061006 + 61006061007.

It is an arithmetic number, because the mean of its divisors is an integer number (61006061007).

Almost surely, 2^122012122013 is an apocalyptic number.

It is an amenable number.

122012122013 is a deficient number, since it is larger than the sum of its proper divisors (1).

122012122013 is an equidigital number, since it uses as much as digits as its factorization.

122012122013 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 122012122013 its reverse (310221210221), we get a palindrome (432233332234).

The spelling of 122012122013 in words is "one hundred twenty-two billion, twelve million, one hundred twenty-two thousand, thirteen".