1112120121111 has 16 divisors (see below), whose sum is σ = 1503189837024. Its totient is φ = 731232589824.

The previous prime is 1112120121019. The next prime is 1112120121143. The reversal of 1112120121111 is 1111210212111.

It is not a de Polignac number, because 1112120121111 - 2¹⁷ = 1112119990039 is a prime.

It is a super-2 number, since 2×1112120121111² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112120121011) 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, 8404615 + ... + 8535911.

It is an arithmetic number, because the mean of its divisors is an integer number (93949364814).

Almost surely, 2^{1112120121111} is an apocalyptic number.

1112120121111 is a deficient number, since it is larger than the sum of its proper divisors (391069715913).

1112120121111 is a wasteful number, since it uses less digits than its factorization.

1112120121111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170050.

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

Adding to 1112120121111 its reverse (1111210212111), we get a palindrome (2223330333222).

The spelling of 1112120121111 in words is "one trillion, one hundred twelve billion, one hundred twenty million, one hundred twenty-one thousand, one hundred eleven".