2020111121999 has 4 divisors (see below), whose sum is σ = 2022547927560. Its totient is φ = 2017674316440.

The previous prime is 2020111121939. The next prime is 2020111122013. The reversal of 2020111121999 is 9991211110202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2020111121999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020111121929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1218401537 + ... + 1218403194.

It is an arithmetic number, because the mean of its divisors is an integer number (505636981890).

Almost surely, 2^{2020111121999} is an apocalyptic number.

2020111121999 is a deficient number, since it is larger than the sum of its proper divisors (2436805561).

2020111121999 is an equidigital number, since it uses as much as digits as its factorization.

2020111121999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2436805560.

The product of its (nonzero) digits is 5832, while the sum is 38.

The spelling of 2020111121999 in words is "two trillion, twenty billion, one hundred eleven million, one hundred twenty-one thousand, nine hundred ninety-nine".