2001112122200 has 48 divisors (see below), whose sum is σ = 4653451858680. Its totient is φ = 800295829760.

The previous prime is 2001112122197. The next prime is 2001112122223. The reversal of 2001112122200 is 22212111002.

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, 148724 + ... + 2006076.

Almost surely, 2^{2001112122200} is an apocalyptic number.

2001112122200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2001112122200 is an abundant number, since it is smaller than the sum of its proper divisors (2652339736480).

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

2001112122200 is a wasteful number, since it uses less digits than its factorization.

2001112122200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1862756 (or 1862747 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2001112122200 its reverse (22212111002), we get a palindrome (2023324233202).

The spelling of 2001112122200 in words is "two trillion, one billion, one hundred twelve million, one hundred twenty-two thousand, two hundred".