3012131333221 has 2 divisors, whose sum is σ = 3012131333222. Its totient is φ = 3012131333220.

The previous prime is 3012131333209. The next prime is 3012131333243. The reversal of 3012131333221 is 1223331312103.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2447694669121 + 564436664100 = 1564511^2 + 751290^2 .

It is a cyclic number.

It is not a de Polignac number, because 3012131333221 - 2¹¹ = 3012131331173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3012131333521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1506065666610 + 1506065666611.

It is an arithmetic number, because the mean of its divisors is an integer number (1506065666611).

Almost surely, 2^{3012131333221} is an apocalyptic number.

It is an amenable number.

3012131333221 is a deficient number, since it is larger than the sum of its proper divisors (1).

3012131333221 is an equidigital number, since it uses as much as digits as its factorization.

3012131333221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 3012131333221 its reverse (1223331312103), we get a palindrome (4235462645324).

The spelling of 3012131333221 in words is "three trillion, twelve billion, one hundred thirty-one million, three hundred thirty-three thousand, two hundred twenty-one".