3372185038721 has 2 divisors, whose sum is σ = 3372185038722. Its totient is φ = 3372185038720.

The previous prime is 3372185038687. The next prime is 3372185038759. The reversal of 3372185038721 is 1278305812733.

3372185038721 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3300994794496 + 71190244225 = 1816864^2 + 266815^2 .

It is an emirp because it is prime and its reverse (1278305812733) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3372185038721 - 2³⁸ = 3097307131777 is a prime.

It is a super-2 number, since 2×3372185038721² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3372185038721.

It is not a weakly prime, because it can be changed into another prime (3372185038421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1686092519360 + 1686092519361.

It is an arithmetic number, because the mean of its divisors is an integer number (1686092519361).

Almost surely, 2^{3372185038721} is an apocalyptic number.

It is an amenable number.

3372185038721 is a deficient number, since it is larger than the sum of its proper divisors (1).

3372185038721 is an equidigital number, since it uses as much as digits as its factorization.

3372185038721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1693440, while the sum is 50.

The spelling of 3372185038721 in words is "three trillion, three hundred seventy-two billion, one hundred eighty-five million, thirty-eight thousand, seven hundred twenty-one".