1201112111 has 8 divisors (see below), whose sum is σ = 1242951600. Its totient is φ = 1159300800.

The previous prime is 1201112089. The next prime is 1201112131. The reversal of 1201112111 is 1112111021.

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 1201112111 - 2⁶ = 1201112047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1201112092 and 1201112101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201112131) 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, 116900 + ... + 126758.

It is an arithmetic number, because the mean of its divisors is an integer number (155368950).

Almost surely, 2^1201112111 is an apocalyptic number.

1201112111 is a deficient number, since it is larger than the sum of its proper divisors (41839489).

1201112111 is an equidigital number, since it uses as much as digits as its factorization.

1201112111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14089.

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

The square root of 1201112111 is about 34657.0643736598. The cubic root of 1201112111 is about 1062.9867440138.

Adding to 1201112111 its reverse (1112111021), we get a palindrome (2313223132).

The spelling of 1201112111 in words is "one billion, two hundred one million, one hundred twelve thousand, one hundred eleven".