211012211000111 has 4 divisors (see below), whose sum is σ = 211012845229824. Its totient is φ = 211011576770400.

The previous prime is 211012211000081. The next prime is 211012211000117. The reversal of 211012211000111 is 111000112210112.

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 211012211000111 - 2³⁰ = 211011137258287 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 (211012211000117) 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, 316615535 + ... + 317281296.

It is an arithmetic number, because the mean of its divisors is an integer number (52753211307456).

Almost surely, 2^{211012211000111} is an apocalyptic number.

211012211000111 is a deficient number, since it is larger than the sum of its proper divisors (634229713).

211012211000111 is an equidigital number, since it uses as much as digits as its factorization.

211012211000111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634229712.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 211012211000111 its reverse (111000112210112), we get a palindrome (322012323210223).

The spelling of 211012211000111 in words is "two hundred eleven trillion, twelve billion, two hundred eleven million, one hundred eleven", and thus it is an aban number.