1120211111 has 8 divisors (see below), whose sum is σ = 1140311040. Its totient is φ = 1100148408.

The previous prime is 1120211083. The next prime is 1120211129. The reversal of 1120211111 is 1111120211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1120211111 - 2⁶ = 1120211047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1120211092 and 1120211101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120211161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55400 + ... + 72866.

It is an arithmetic number, because the mean of its divisors is an integer number (142538880).

Almost surely, 2^1120211111 is an apocalyptic number.

1120211111 is a deficient number, since it is larger than the sum of its proper divisors (20099929).

1120211111 is a wasteful number, since it uses less digits than its factorization.

1120211111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18613.

The product of its (nonzero) digits is 4, while the sum is 11.

The square root of 1120211111 is about 33469.5549865844. The cubic root of 1120211111 is about 1038.5640658318.

Adding to 1120211111 its reverse (1111120211), we get a palindrome (2231331322).

It can be divided in two parts, 1120211 and 111, that multiplied together give a palindrome (124343421).

The spelling of 1120211111 in words is "one billion, one hundred twenty million, two hundred eleven thousand, one hundred eleven".