120202021999 has 2 divisors, whose sum is σ = 120202022000. Its totient is φ = 120202021998.

The previous prime is 120202021969. The next prime is 120202022041. The reversal of 120202021999 is 999120202021.

It is a weak prime.

It is an emirp because it is prime and its reverse (999120202021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120202021999 - 2¹³ = 120202013807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120202021909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60101010999 + 60101011000.

It is an arithmetic number, because the mean of its divisors is an integer number (60101011000).

Almost surely, 2^120202021999 is an apocalyptic number.

120202021999 is a deficient number, since it is larger than the sum of its proper divisors (1).

120202021999 is an equidigital number, since it uses as much as digits as its factorization.

120202021999 is an odious number, because the sum of its binary digits is odd.

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

The spelling of 120202021999 in words is "one hundred twenty billion, two hundred two million, twenty-one thousand, nine hundred ninety-nine".