2001225 has 12 divisors (see below), whose sum is σ = 3308816. Its totient is φ = 1067280.

The previous prime is 2001211. The next prime is 2001229. The reversal of 2001225 is 5221002.

It is not a de Polignac number, because 2001225 - 2⁸ = 2000969 is a prime.

It is a Duffinian number.

2001225 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2001225.

It is not an unprimeable number, because it can be changed into a prime (2001229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13267 + ... + 13416.

2^2001225 is an apocalyptic number.

2001225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2001225 is a deficient number, since it is larger than the sum of its proper divisors (1307591).

2001225 is a wasteful number, since it uses less digits than its factorization.

2001225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26696 (or 26691 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 2001225 is about 1414.6465989780. The cubic root of 2001225 is about 126.0178231275.

Adding to 2001225 its reverse (5221002), we get a palindrome (7222227).

The spelling of 2001225 in words is "two million, one thousand, two hundred twenty-five".