1112201212111 has 16 divisors (see below), whose sum is σ = 1221138436608. Its totient is φ = 1004589409600.

The previous prime is 1112201212079. The next prime is 1112201212117. The reversal of 1112201212111 is 1112121022111.

It is a cyclic number.

It is not a de Polignac number, because 1112201212111 - 2⁵ = 1112201212079 is a prime.

It is a super-2 number, since 2×1112201212111² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112201212117) 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, 554106 + ... + 1591048.

It is an arithmetic number, because the mean of its divisors is an integer number (76321152288).

Almost surely, 2^{1112201212111} is an apocalyptic number.

1112201212111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1112201212111 is a deficient number, since it is larger than the sum of its proper divisors (108937224497).

1112201212111 is a wasteful number, since it uses less digits than its factorization.

1112201212111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1037582.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 1112201212111 its reverse (1112121022111), we get a palindrome (2224322234222).

The spelling of 1112201212111 in words is "one trillion, one hundred twelve billion, two hundred one million, two hundred twelve thousand, one hundred eleven".