2001220012203 has 8 divisors (see below), whose sum is σ = 2679745253328. Its totient is φ = 1328420722944.

The previous prime is 2001220012193. The next prime is 2001220012223. The reversal of 2001220012203 is 3022100221002.

It is a happy number.

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

It is not a de Polignac number, because 2001220012203 - 2⁵ = 2001220012171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2001220012223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1431487150 + ... + 1431488547.

It is an arithmetic number, because the mean of its divisors is an integer number (334968156666).

Almost surely, 2^{2001220012203} is an apocalyptic number.

2001220012203 is a deficient number, since it is larger than the sum of its proper divisors (678525241125).

2001220012203 is a wasteful number, since it uses less digits than its factorization.

2001220012203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2862975933.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 2001220012203 its reverse (3022100221002), we get a palindrome (5023320233205).

The spelling of 2001220012203 in words is "two trillion, one billion, two hundred twenty million, twelve thousand, two hundred three".