121012012209973 has 2 divisors, whose sum is σ = 121012012209974. Its totient is φ = 121012012209972.

The previous prime is 121012012209877. The next prime is 121012012210003. The reversal of 121012012209973 is 379902210210121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74393678281329 + 46618333928644 = 8625177^2 + 6827762^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121012012209973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121012012279973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60506006104986 + 60506006104987.

It is an arithmetic number, because the mean of its divisors is an integer number (60506006104987).

Almost surely, 2^{121012012209973} is an apocalyptic number.

It is an amenable number.

121012012209973 is a deficient number, since it is larger than the sum of its proper divisors (1).

121012012209973 is an equidigital number, since it uses as much as digits as its factorization.

121012012209973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 40.

The spelling of 121012012209973 in words is "one hundred twenty-one trillion, twelve billion, twelve million, two hundred nine thousand, nine hundred seventy-three".