121310022121993 has 2 divisors, whose sum is σ = 121310022121994. Its totient is φ = 121310022121992.

The previous prime is 121310022121957. The next prime is 121310022122059. The reversal of 121310022121993 is 399121220013121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114597710121024 + 6712312000969 = 10705032^2 + 2590813^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121310022121993 is a prime.

It is a super-2 number, since 2×121310022121993² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121310022121193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60655011060996 + 60655011060997.

It is an arithmetic number, because the mean of its divisors is an integer number (60655011060997).

Almost surely, 2^{121310022121993} is an apocalyptic number.

It is an amenable number.

121310022121993 is a deficient number, since it is larger than the sum of its proper divisors (1).

121310022121993 is an equidigital number, since it uses as much as digits as its factorization.

121310022121993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 37.

The spelling of 121310022121993 in words is "one hundred twenty-one trillion, three hundred ten billion, twenty-two million, one hundred twenty-one thousand, nine hundred ninety-three".