1112122222211 has 32 divisors (see below), whose sum is σ = 1507983353856. Its totient is φ = 792007920000.

The previous prime is 1112122222177. The next prime is 1112122222217. The reversal of 1112122222211 is 1122222212111.

It is not a de Polignac number, because 1112122222211 - 2³⁸ = 837244315267 is a prime.

It is a Smith number, since the sum of its digits (20) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1112122222217) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5398955 + ... + 5601156.

It is an arithmetic number, because the mean of its divisors is an integer number (47124479808).

Almost surely, 2^{1112122222211} is an apocalyptic number.

1112122222211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1112122222211 is a deficient number, since it is larger than the sum of its proper divisors (395861131645).

1112122222211 is a wasteful number, since it uses less digits than its factorization.

1112122222211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11000243.

The product of its digits is 128, while the sum is 20.

Adding to 1112122222211 its reverse (1122222212111), we get a palindrome (2234344434322).

The spelling of 1112122222211 in words is "one trillion, one hundred twelve billion, one hundred twenty-two million, two hundred twenty-two thousand, two hundred eleven".