2111211211112 has 8 divisors (see below), whose sum is σ = 3958521020850. Its totient is φ = 1055605605552.

The previous prime is 2111211211079. The next prime is 2111211211121. The reversal of 2111211211112 is 2111121121112.

It can be written as a sum of positive squares in only one way, i.e., 1143517977316 + 967693233796 = 1069354^2 + 983714^2 .

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

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131950700687 + ... + 131950700702.

Almost surely, 2^{2111211211112} is an apocalyptic number.

It is an amenable number.

2111211211112 is a deficient number, since it is larger than the sum of its proper divisors (1847309809738).

2111211211112 is a wasteful number, since it uses less digits than its factorization.

2111211211112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263901401395 (or 263901401391 counting only the distinct ones).

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

Adding to 2111211211112 its reverse (2111121121112), we get a palindrome (4222332332224).

The spelling of 2111211211112 in words is "two trillion, one hundred eleven billion, two hundred eleven million, two hundred eleven thousand, one hundred twelve".