2111011111112 has 24 divisors (see below), whose sum is σ = 3973608101010. Its totient is φ = 1051398266880.

The previous prime is 2111011111093. The next prime is 2111011111207. The reversal of 2111011111112 is 2111111101112.

It can be written as a sum of positive squares in 3 ways, for example, as 2018598759076 + 92412352036 = 1420774^2 + 303994^2 .

It is a super-2 number, since 2×2111011111112² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1469189 + ... + 2525972.

Almost surely, 2^{2111011111112} is an apocalyptic number.

It is an amenable number.

2111011111112 is a deficient number, since it is larger than the sum of its proper divisors (1862596989898).

2111011111112 is an equidigital number, since it uses as much as digits as its factorization.

2111011111112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3995681 (or 3995420 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 14.

Adding to 2111011111112 its reverse (2111111101112), we get a palindrome (4222122212224).

The spelling of 2111011111112 in words is "two trillion, one hundred eleven billion, eleven million, one hundred eleven thousand, one hundred twelve".