202012120111999 has 2 divisors, whose sum is σ = 202012120112000. Its totient is φ = 202012120111998.

The previous prime is 202012120111973. The next prime is 202012120112041. The reversal of 202012120111999 is 999111021210202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 202012120111999 - 2¹⁹ = 202012119587711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202012120118999) 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, 101006060055999 + 101006060056000.

It is an arithmetic number, because the mean of its divisors is an integer number (101006060056000).

Almost surely, 2^{202012120111999} is an apocalyptic number.

202012120111999 is a deficient number, since it is larger than the sum of its proper divisors (1).

202012120111999 is an equidigital number, since it uses as much as digits as its factorization.

202012120111999 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 40.

The spelling of 202012120111999 in words is "two hundred two trillion, twelve billion, one hundred twenty million, one hundred eleven thousand, nine hundred ninety-nine".