2001225200 has 60 divisors (see below), whose sum is σ = 5177798808. Its totient is φ = 738912000.

The previous prime is 2001225167. The next prime is 2001225221. The reversal of 2001225200 is 25221002.

It is a super-2 number, since 2×2001225200² = 8009804602230080000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 187226 + ... + 197625.

Almost surely, 2^2001225200 is an apocalyptic number.

2001225200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2001225200 is an abundant number, since it is smaller than the sum of its proper divisors (3176573608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2001225200 is a wasteful number, since it uses less digits than its factorization.

2001225200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384882 (or 384871 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 2001225200 is about 44735.0556051962. The cubic root of 2001225200 is about 1260.1782732554.

Adding to 2001225200 its reverse (25221002), we get a palindrome (2026446202).

The spelling of 2001225200 in words is "two billion, one million, two hundred twenty-five thousand, two hundred".