1200021122303 has 16 divisors (see below), whose sum is σ = 1280909541600. Its totient is φ = 1120915998720.

The previous prime is 1200021122299. The next prime is 1200021122353. The reversal of 1200021122303 is 3032211200021.

It is not a de Polignac number, because 1200021122303 - 2² = 1200021122299 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200021122353) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4075613 + ... + 4360121.

It is an arithmetic number, because the mean of its divisors is an integer number (80056846350).

Almost surely, 2^{1200021122303} is an apocalyptic number.

1200021122303 is a deficient number, since it is larger than the sum of its proper divisors (80888419297).

1200021122303 is a wasteful number, since it uses less digits than its factorization.

1200021122303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287642.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 1200021122303 its reverse (3032211200021), we get a palindrome (4232232322324).

The spelling of 1200021122303 in words is "one trillion, two hundred billion, twenty-one million, one hundred twenty-two thousand, three hundred three".