2001112223 has 8 divisors (see below), whose sum is σ = 2207561040. Its totient is φ = 1798751680.

The previous prime is 2001112213. The next prime is 2001112229. The reversal of 2001112223 is 3222111002.

It is a happy number.

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

It is not a de Polignac number, because 2001112223 - 2⁴ = 2001112207 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2001112198 and 2001112207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001112229) 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, 1021040 + ... + 1022997.

It is an arithmetic number, because the mean of its divisors is an integer number (275945130).

Almost surely, 2^2001112223 is an apocalyptic number.

2001112223 is a deficient number, since it is larger than the sum of its proper divisors (206448817).

2001112223 is a wasteful number, since it uses less digits than its factorization.

2001112223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2044137.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2001112223 is about 44733.7928528311. The cubic root of 2001112223 is about 1260.1545588095.

Adding to 2001112223 its reverse (3222111002), we get a palindrome (5223223225).

The spelling of 2001112223 in words is "two billion, one million, one hundred twelve thousand, two hundred twenty-three".