112221111111 has 64 divisors (see below), whose sum is σ = 166351718400. Its totient is φ = 67016678400.

The previous prime is 112221111103. The next prime is 112221111137. The reversal of 112221111111 is 111111122211.

It is not a de Polignac number, because 112221111111 - 2³ = 112221111103 is a prime.

112221111111 is a modest number, since divided by 1111111 gives 11222 as remainder.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112221111151) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 23430705 + ... + 23435493.

It is an arithmetic number, because the mean of its divisors is an integer number (2599245600).

Almost surely, 2^112221111111 is an apocalyptic number.

112221111111 is a deficient number, since it is larger than the sum of its proper divisors (54130607289).

112221111111 is a wasteful number, since it uses less digits than its factorization.

112221111111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5160.

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

Adding to 112221111111 its reverse (111111122211), we get a palindrome (223332233322).

It can be divided in two parts, 1122211 and 11111, that multiplied together give a palindrome (12468886421).

The spelling of 112221111111 in words is "one hundred twelve billion, two hundred twenty-one million, one hundred eleven thousand, one hundred eleven".