2111112111000 has 128 divisors (see below), whose sum is σ = 6614940945600. Its totient is φ = 560546892800.

The previous prime is 2111112110999. The next prime is 2111112111007. The reversal of 2111112111000 is 1112111112.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111112111007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 811095 + ... + 2209094.

Almost surely, 2^{2111112111000} is an apocalyptic number.

2111112111000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2111112111000 is an abundant number, since it is smaller than the sum of its proper divisors (4503828834600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2111112111000 is a wasteful number, since it uses less digits than its factorization.

2111112111000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3020446 (or 3020432 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 2111112111000 its reverse (1112111112), we get a palindrome (2112224222112).

The spelling of 2111112111000 in words is "two trillion, one hundred eleven billion, one hundred twelve million, one hundred eleven thousand".