211112000222111 has 4 divisors (see below), whose sum is σ = 211112059950000. Its totient is φ = 211111940494224.

The previous prime is 211112000222099. The next prime is 211112000222171. The reversal of 211112000222111 is 111222000211112.

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 211112000222111 - 2³⁰ = 211110926480287 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 211112000222111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211112000222171) 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, 24204611 + ... + 31750388.

It is an arithmetic number, because the mean of its divisors is an integer number (52778014987500).

Almost surely, 2^{211112000222111} is an apocalyptic number.

211112000222111 is a deficient number, since it is larger than the sum of its proper divisors (59727889).

211112000222111 is an equidigital number, since it uses as much as digits as its factorization.

211112000222111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59727888.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 211112000222111 its reverse (111222000211112), we get a palindrome (322334000433223).

The spelling of 211112000222111 in words is "two hundred eleven trillion, one hundred twelve billion, two hundred twenty-two thousand, one hundred eleven".