2001333225 has 24 divisors (see below), whose sum is σ = 3311176960. Its totient is φ = 1066633920.

The previous prime is 2001333223. The next prime is 2001333227. The reversal of 2001333225 is 5223331002.

It is an interprime number because it is at equal distance from previous prime (2001333223) and next prime (2001333227).

It is not a de Polignac number, because 2001333225 - 2¹ = 2001333223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2001333223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 109011 + ... + 126039.

Almost surely, 2^2001333225 is an apocalyptic number.

2001333225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2001333225 is a deficient number, since it is larger than the sum of its proper divisors (1309843735).

2001333225 is a wasteful number, since it uses less digits than its factorization.

2001333225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18609 (or 18604 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 2001333225 is about 44736.2629753537. The cubic root of 2001333225 is about 1260.2009474166.

Adding to 2001333225 its reverse (5223331002), we get a palindrome (7224664227).

The spelling of 2001333225 in words is "two billion, one million, three hundred thirty-three thousand, two hundred twenty-five".