200019121111 has 4 divisors (see below), whose sum is σ = 202551008800. Its totient is φ = 197487233424.

The previous prime is 200019121087. The next prime is 200019121147. The reversal of 200019121111 is 111121910002.

200019121111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 200019121111 - 2⁹ = 200019120599 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 (200019121171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1265943726 + ... + 1265943883.

It is an arithmetic number, because the mean of its divisors is an integer number (50637752200).

Almost surely, 2^200019121111 is an apocalyptic number.

200019121111 is a deficient number, since it is larger than the sum of its proper divisors (2531887689).

200019121111 is an equidigital number, since it uses as much as digits as its factorization.

200019121111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2531887688.

The product of its (nonzero) digits is 36, while the sum is 19.

The spelling of 200019121111 in words is "two hundred billion, nineteen million, one hundred twenty-one thousand, one hundred eleven".