2001223033 has 16 divisors (see below), whose sum is σ = 2080728000. Its totient is φ = 1923172416.

The previous prime is 2001222991. The next prime is 2001223057. The reversal of 2001223033 is 3303221002.

It is a cyclic number.

It is not a de Polignac number, because 2001223033 - 2⁹ = 2001222521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2001222998 and 2001223016.

It is not an unprimeable number, because it can be changed into a prime (2001223933) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1975035 + ... + 1976047.

It is an arithmetic number, because the mean of its divisors is an integer number (130045500).

Almost surely, 2^2001223033 is an apocalyptic number.

It is an amenable number.

2001223033 is a deficient number, since it is larger than the sum of its proper divisors (79504967).

2001223033 is a wasteful number, since it uses less digits than its factorization.

2001223033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1656.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 2001223033 is about 44735.0313848107. The cubic root of 2001223033 is about 1260.1778183995.

Adding to 2001223033 its reverse (3303221002), we get a palindrome (5304444035).

The spelling of 2001223033 in words is "two billion, one million, two hundred twenty-three thousand, thirty-three".