122001013 has 2 divisors, whose sum is σ = 122001014. Its totient is φ = 122001012.

The previous prime is 122001001. The next prime is 122001041. The reversal of 122001013 is 310100221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76073284 + 45927729 = 8722^2 + 6777^2 .

It is an emirp because it is prime and its reverse (310100221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122001013 - 2⁵ = 122000981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122001073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61000506 + 61000507.

It is an arithmetic number, because the mean of its divisors is an integer number (61000507).

Almost surely, 2^122001013 is an apocalyptic number.

It is an amenable number.

122001013 is a deficient number, since it is larger than the sum of its proper divisors (1).

122001013 is an equidigital number, since it uses as much as digits as its factorization.

122001013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 122001013 is about 11045.4068734474. The cubic root of 122001013 is about 495.9689390994.

Adding to 122001013 its reverse (310100221), we get a palindrome (432101234).

The spelling of 122001013 in words is "one hundred twenty-two million, one thousand, thirteen".