120121201999199 has 2 divisors, whose sum is σ = 120121201999200. Its totient is φ = 120121201999198.

The previous prime is 120121201999103. The next prime is 120121201999259. The reversal of 120121201999199 is 991999102121021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 120121201999199 - 2³⁶ = 120052482522463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120121201999499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60060600999599 + 60060600999600.

It is an arithmetic number, because the mean of its divisors is an integer number (60060600999600).

Almost surely, 2^{120121201999199} is an apocalyptic number.

120121201999199 is a deficient number, since it is larger than the sum of its proper divisors (1).

120121201999199 is an equidigital number, since it uses as much as digits as its factorization.

120121201999199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 472392, while the sum is 56.

The spelling of 120121201999199 in words is "one hundred twenty trillion, one hundred twenty-one billion, two hundred one million, nine hundred ninety-nine thousand, one hundred ninety-nine".