2011221210303 has 12 divisors (see below), whose sum is σ = 2937738847680. Its totient is φ = 1325748812256.

The previous prime is 2011221210277. The next prime is 2011221210311. The reversal of 2011221210303 is 3030121221102.

2011221210303 is a `hidden beast` number, since 20 + 112 + 21 + 210 + 303 = 666.

It is not a de Polignac number, because 2011221210303 - 2⁹ = 2011221209791 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011221210353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1255443151 + ... + 1255444752.

It is an arithmetic number, because the mean of its divisors is an integer number (244811570640).

Almost surely, 2^{2011221210303} is an apocalyptic number.

2011221210303 is a deficient number, since it is larger than the sum of its proper divisors (926517637377).

2011221210303 is a wasteful number, since it uses less digits than its factorization.

2011221210303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2510887998 (or 2510887995 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 2011221210303 its reverse (3030121221102), we get a palindrome (5041342431405).

The spelling of 2011221210303 in words is "two trillion, eleven billion, two hundred twenty-one million, two hundred ten thousand, three hundred three".