211101112111112 has 8 divisors (see below), whose sum is σ = 395814585208350. Its totient is φ = 105550556055552.

The previous prime is 211101112111081. The next prime is 211101112111121. The reversal of 211101112111112 is 211111211101112.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 136589101133956 + 74512010977156 = 11687134^2 + 8632034^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13193819506937 + ... + 13193819506952.

Almost surely, 2^{211101112111112} is an apocalyptic number.

It is an amenable number.

211101112111112 is a deficient number, since it is larger than the sum of its proper divisors (184713473097238).

211101112111112 is a wasteful number, since it uses less digits than its factorization.

211101112111112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26387639013895 (or 26387639013891 counting only the distinct ones).

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

Adding to 211101112111112 its reverse (211111211101112), we get a palindrome (422212323212224).

The spelling of 211101112111112 in words is "two hundred eleven trillion, one hundred one billion, one hundred twelve million, one hundred eleven thousand, one hundred twelve".