1020121120199 has 2 divisors, whose sum is σ = 1020121120200. Its totient is φ = 1020121120198.

The previous prime is 1020121120181. The next prime is 1020121120259. The reversal of 1020121120199 is 9910211210201.

It is a weak prime.

It is an emirp because it is prime and its reverse (9910211210201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1020121120199 - 2²⁸ = 1019852684743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1020121120129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510060560099 + 510060560100.

It is an arithmetic number, because the mean of its divisors is an integer number (510060560100).

Almost surely, 2^{1020121120199} is an apocalyptic number.

1020121120199 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020121120199 is an equidigital number, since it uses as much as digits as its factorization.

1020121120199 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 1020121120199 in words is "one trillion, twenty billion, one hundred twenty-one million, one hundred twenty thousand, one hundred ninety-nine".