121121002000199 has 2 divisors, whose sum is σ = 121121002000200. Its totient is φ = 121121002000198.

The previous prime is 121121002000157. The next prime is 121121002000223. The reversal of 121121002000199 is 991000200121121.

It is a strong prime.

It is an emirp because it is prime and its reverse (991000200121121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121121002000199 - 2²⁰ = 121121000951623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121121002000099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60560501000099 + 60560501000100.

It is an arithmetic number, because the mean of its divisors is an integer number (60560501000100).

Almost surely, 2^{121121002000199} is an apocalyptic number.

121121002000199 is a deficient number, since it is larger than the sum of its proper divisors (1).

121121002000199 is an equidigital number, since it uses as much as digits as its factorization.

121121002000199 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 29.

The spelling of 121121002000199 in words is "one hundred twenty-one trillion, one hundred twenty-one billion, two million, one hundred ninety-nine", and thus it is an aban number.