211112201111012 has 12 divisors (see below), whose sum is σ = 391178490294060. Its totient is φ = 99346918169856.

The previous prime is 211112201111003. The next prime is 211112201111027. The reversal of 211112201111012 is 210111102211112.

It can be written as a sum of positive squares in 2 ways, for example, as 189452540958976 + 21659660152036 = 13764176^2 + 4653994^2 .

It is a super-2 number, since 2×211112201111012² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1552295596337 + ... + 1552295596472.

It is an arithmetic number, because the mean of its divisors is an integer number (32598207524505).

Almost surely, 2^{211112201111012} is an apocalyptic number.

It is an amenable number.

211112201111012 is a deficient number, since it is larger than the sum of its proper divisors (180066289183048).

211112201111012 is a wasteful number, since it uses less digits than its factorization.

211112201111012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3104591192830 (or 3104591192828 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 211112201111012 its reverse (210111102211112), we get a palindrome (421223303322124).

The spelling of 211112201111012 in words is "two hundred eleven trillion, one hundred twelve billion, two hundred one million, one hundred eleven thousand, twelve".