11112021111 has 16 divisors (see below), whose sum is σ = 15041138688. Its totient is φ = 7296228000.

The previous prime is 11112021103. The next prime is 11112021121.

11112021111 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 11112021111 - 2³ = 11112021103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11112021101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38131 + ... + 153876.

It is an arithmetic number, because the mean of its divisors is an integer number (940071168).

Almost surely, 2^11112021111 is an apocalyptic number.

11112021111 is a deficient number, since it is larger than the sum of its proper divisors (3929117577).

11112021111 is a wasteful number, since it uses less digits than its factorization.

11112021111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192302.

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

It can be divided in two parts, 111120 and 21111, that added together give a palindrome (132231).

The spelling of 11112021111 in words is "eleven billion, one hundred twelve million, twenty-one thousand, one hundred eleven".