12003031221101 has 4 divisors (see below), whose sum is σ = 12003603332604. Its totient is φ = 12002459109600.

The previous prime is 12003031221079. The next prime is 12003031221119. The reversal of 12003031221101 is 10112213030021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5158581105001 + 6844450116100 = 2271251^2 + 2616190^2 .

It is a cyclic number.

It is not a de Polignac number, because 12003031221101 - 2⁴² = 7604984709997 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12003031221101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12003031221901) 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 3 ways as a sum of consecutive naturals, for example, 286024280 + ... + 286066241.

It is an arithmetic number, because the mean of its divisors is an integer number (3000900833151).

Almost surely, 2^{12003031221101} is an apocalyptic number.

It is an amenable number.

12003031221101 is a deficient number, since it is larger than the sum of its proper divisors (572111503).

12003031221101 is an equidigital number, since it uses as much as digits as its factorization.

12003031221101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572111502.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 12003031221101 its reverse (10112213030021), we get a palindrome (22115244251122).

The spelling of 12003031221101 in words is "twelve trillion, three billion, thirty-one million, two hundred twenty-one thousand, one hundred one".