211112002020111 has 4 divisors (see below), whose sum is σ = 281482669360152. Its totient is φ = 140741334680072.

The previous prime is 211112002020077. The next prime is 211112002020193. The reversal of 211112002020111 is 111020200211112.

It is a happy number.

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 211112002020111 - 2¹⁷ = 211112001889039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211112002020211) 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, 35185333670016 + ... + 35185333670021.

It is an arithmetic number, because the mean of its divisors is an integer number (70370667340038).

Almost surely, 2^{211112002020111} is an apocalyptic number.

211112002020111 is a deficient number, since it is larger than the sum of its proper divisors (70370667340041).

211112002020111 is an equidigital number, since it uses as much as digits as its factorization.

211112002020111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70370667340040.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 211112002020111 its reverse (111020200211112), we get a palindrome (322132202231223).

The spelling of 211112002020111 in words is "two hundred eleven trillion, one hundred twelve billion, two million, twenty thousand, one hundred eleven".