211011211111112 has 32 divisors (see below), whose sum is σ = 395869881183480. Its totient is φ = 105445926351360.

The previous prime is 211011211111111. The next prime is 211011211111117. The reversal of 211011211111112 is 211111112110112.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 111326681913316 + 99684529197796 = 10551146^2 + 9984214^2 .

It is not an unprimeable number, because it can be changed into a prime (211011211111111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99235562 + ... + 101339622.

Almost surely, 2^{211011211111112} is an apocalyptic number.

It is an amenable number.

211011211111112 is a deficient number, since it is larger than the sum of its proper divisors (184858670072368).

211011211111112 is a wasteful number, since it uses less digits than its factorization.

211011211111112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2111153 (or 2111149 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 17.

Adding to 211011211111112 its reverse (211111112110112), we get a palindrome (422122323221224).

The spelling of 211011211111112 in words is "two hundred eleven trillion, eleven billion, two hundred eleven million, one hundred eleven thousand, one hundred twelve".