1201112112 has 80 divisors (see below), whose sum is σ = 3248363520. Its totient is φ = 381964800.

The previous prime is 1201112089. The next prime is 1201112131. The reversal of 1201112112 is 2112111021.

It is a super-3 number, since 3×1201112112³ (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99964 + ... + 111332.

It is an arithmetic number, because the mean of its divisors is an integer number (40604544).

Almost surely, 2^1201112112 is an apocalyptic number.

1201112112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1201112112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1624181760).

1201112112 is an abundant number, since it is smaller than the sum of its proper divisors (2047251408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1201112112 is a wasteful number, since it uses less digits than its factorization.

1201112112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11482 (or 11476 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

The square root of 1201112112 is about 34657.0643880869. The cubic root of 1201112112 is about 1062.9867443088.

Adding to 1201112112 its reverse (2112111021), we get a palindrome (3313223133).

The spelling of 1201112112 in words is "one billion, two hundred one million, one hundred twelve thousand, one hundred twelve".