2111200011111 has 8 divisors (see below), whose sum is σ = 2880396914560. Its totient is φ = 1374734890872.

The previous prime is 2111200011101. The next prime is 2111200011119. The reversal of 2111200011111 is 1111100021112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2111200011111 - 2⁶ = 2111200011047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111200011119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8182945651 + ... + 8182945908.

It is an arithmetic number, because the mean of its divisors is an integer number (360049614320).

Almost surely, 2^{2111200011111} is an apocalyptic number.

2111200011111 is a deficient number, since it is larger than the sum of its proper divisors (769196903449).

2111200011111 is a wasteful number, since it uses less digits than its factorization.

2111200011111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16365891605.

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

Adding to 2111200011111 its reverse (1111100021112), we get a palindrome (3222300032223).

It can be divided in two parts, 211120001 and 1111, that added together give a palindrome (211121112).

The spelling of 2111200011111 in words is "two trillion, one hundred eleven billion, two hundred million, eleven thousand, one hundred eleven".