2001112212203 has 8 divisors (see below), whose sum is σ = 2155057078608. Its totient is φ = 1847169225504.

The previous prime is 2001112212131. The next prime is 2001112212247. The reversal of 2001112212203 is 3022122111002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2001112212203 is a prime.

It is a super-2 number, since 2×2001112212203² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2001112212293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2382401 + ... + 3110957.

It is an arithmetic number, because the mean of its divisors is an integer number (269382134826).

Almost surely, 2^{2001112212203} is an apocalyptic number.

2001112212203 is a deficient number, since it is larger than the sum of its proper divisors (153944866405).

2001112212203 is a wasteful number, since it uses less digits than its factorization.

2001112212203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 939853.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 2001112212203 its reverse (3022122111002), we get a palindrome (5023234323205).

The spelling of 2001112212203 in words is "two trillion, one billion, one hundred twelve million, two hundred twelve thousand, two hundred three".