3112131330221 has 8 divisors (see below), whose sum is σ = 3114111267000. Its totient is φ = 3110151582720.

The previous prime is 3112131330211. The next prime is 3112131330247. The reversal of 3112131330221 is 1220331312113.

3112131330221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 11027940196 + 3101103390025 = 105014^2 + 1760995^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 3112131330221 - 2¹⁸ = 3112131068077 is a prime.

It is a super-2 number, since 2×3112131330221² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3112131330211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47958005 + ... + 48022853.

It is an arithmetic number, because the mean of its divisors is an integer number (389263908375).

Almost surely, 2^{3112131330221} is an apocalyptic number.

It is an amenable number.

3112131330221 is a deficient number, since it is larger than the sum of its proper divisors (1979936779).

3112131330221 is a wasteful number, since it uses less digits than its factorization.

3112131330221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94639.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 3112131330221 its reverse (1220331312113), we get a palindrome (4332462642334).

The spelling of 3112131330221 in words is "three trillion, one hundred twelve billion, one hundred thirty-one million, three hundred thirty thousand, two hundred twenty-one".