211112121211113 has 32 divisors (see below), whose sum is σ = 291226735825920. Its totient is φ = 135956815001280.

The previous prime is 211112121211099. The next prime is 211112121211171. The reversal of 211112121211113 is 311112121211112.

It is not a de Polignac number, because 211112121211113 - 2³² = 211107826243817 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 211112121211113.

It is not an unprimeable number, because it can be changed into a prime (211112121210113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4310131 + ... + 20995272.

It is an arithmetic number, because the mean of its divisors is an integer number (9100835494560).

Almost surely, 2^{211112121211113} is an apocalyptic number.

It is an amenable number.

211112121211113 is a deficient number, since it is larger than the sum of its proper divisors (80114614614807).

211112121211113 is a wasteful number, since it uses less digits than its factorization.

211112121211113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25306269.

The product of its digits is 48, while the sum is 21.

Adding to 211112121211113 its reverse (311112121211112), we get a palindrome (522224242422225).

Subtracting 211112121211113 from its reverse (311112121211112), we obtain a palindrome (99999999999999).

The spelling of 211112121211113 in words is "two hundred eleven trillion, one hundred twelve billion, one hundred twenty-one million, two hundred eleven thousand, one hundred thirteen".