2111011221111 has 8 divisors (see below), whose sum is σ = 3031195599600. Its totient is φ = 1299083828352.

The previous prime is 2111011221097. The next prime is 2111011221119. The reversal of 2111011221111 is 1111221101112.

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

It is not a de Polignac number, because 2111011221111 - 2²⁹ = 2110474350199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111011221119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27064246386 + ... + 27064246463.

It is an arithmetic number, because the mean of its divisors is an integer number (378899449950).

Almost surely, 2^{2111011221111} is an apocalyptic number.

2111011221111 is a deficient number, since it is larger than the sum of its proper divisors (920184378489).

2111011221111 is a wasteful number, since it uses less digits than its factorization.

2111011221111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54128492865.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 2111011221111 its reverse (1111221101112), we get a palindrome (3222232322223).

The spelling of 2111011221111 in words is "two trillion, one hundred eleven billion, eleven million, two hundred twenty-one thousand, one hundred eleven".