1112221011011 has 4 divisors (see below), whose sum is σ = 1213332012024. Its totient is φ = 1011110010000.

The previous prime is 1112221010969. The next prime is 1112221011023. The reversal of 1112221011011 is 1101101222111.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1112221011011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1112221010011) 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, 50555500490 + ... + 50555500511.

It is an arithmetic number, because the mean of its divisors is an integer number (303333003006).

Almost surely, 2^{1112221011011} is an apocalyptic number.

1112221011011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1112221011011 is a deficient number, since it is larger than the sum of its proper divisors (101111001013).

1112221011011 is a wasteful number, since it uses less digits than its factorization.

1112221011011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101111001012.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 1112221011011 its reverse (1101101222111), we get a palindrome (2213322233122).

The spelling of 1112221011011 in words is "one trillion, one hundred twelve billion, two hundred twenty-one million, eleven thousand, eleven".