112221101011111 has 4 divisors (see below), whose sum is σ = 113332201021224. Its totient is φ = 111110001001000.

The previous prime is 112221101011001. The next prime is 112221101011169. The reversal of 112221101011111 is 111110101122211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 112221101011111 - 2²³ = 112221092622503 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 (112221101014111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 555550004905 + ... + 555550005106.

It is an arithmetic number, because the mean of its divisors is an integer number (28333050255306).

Almost surely, 2^{112221101011111} is an apocalyptic number.

112221101011111 is a deficient number, since it is larger than the sum of its proper divisors (1111100010113).

112221101011111 is a wasteful number, since it uses less digits than its factorization.

112221101011111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111100010112.

The product of its (nonzero) digits is 8, while the sum is 16.

Adding to 112221101011111 its reverse (111110101122211), we get a palindrome (223331202133322).

It can be divided in two parts, 11222110 and 1011111, that added together give a palindrome (12233221).

The spelling of 112221101011111 in words is "one hundred twelve trillion, two hundred twenty-one billion, one hundred one million, eleven thousand, one hundred eleven".