3001132331221 has 4 divisors (see below), whose sum is σ = 3001777879500. Its totient is φ = 3000486782944.

The previous prime is 3001132331137. The next prime is 3001132331257. The reversal of 3001132331221 is 1221332311003.

3001132331221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2816674107025 + 184458224196 = 1678295^2 + 429486^2 .

It is a cyclic number.

It is not a de Polignac number, because 3001132331221 - 2¹⁵ = 3001132298453 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3001132331192 and 3001132331201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3001132331521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 322767166 + ... + 322776463.

It is an arithmetic number, because the mean of its divisors is an integer number (750444469875).

Almost surely, 2^{3001132331221} is an apocalyptic number.

It is an amenable number.

3001132331221 is a deficient number, since it is larger than the sum of its proper divisors (645548279).

3001132331221 is an equidigital number, since it uses as much as digits as its factorization.

3001132331221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645548278.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 3001132331221 its reverse (1221332311003), we get a palindrome (4222464642224).

The spelling of 3001132331221 in words is "three trillion, one billion, one hundred thirty-two million, three hundred thirty-one thousand, two hundred twenty-one".