1201112223 has 4 divisors (see below), whose sum is σ = 1601482968. Its totient is φ = 800741480.

The previous prime is 1201112201. The next prime is 1201112239. The reversal of 1201112223 is 3222111021.

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

It is a cyclic number.

It is not a de Polignac number, because 1201112223 - 2¹³ = 1201104031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201112293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200185368 + ... + 200185373.

It is an arithmetic number, because the mean of its divisors is an integer number (400370742).

Almost surely, 2^1201112223 is an apocalyptic number.

1201112223 is a deficient number, since it is larger than the sum of its proper divisors (400370745).

1201112223 is an equidigital number, since it uses as much as digits as its factorization.

1201112223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400370744.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1201112223 is about 34657.0659894920. The cubic root of 1201112223 is about 1062.9867770539.

Adding to 1201112223 its reverse (3222111021), we get a palindrome (4423223244).

The spelling of 1201112223 in words is "one billion, two hundred one million, one hundred twelve thousand, two hundred twenty-three".