3388390274221 has 2 divisors, whose sum is σ = 3388390274222. Its totient is φ = 3388390274220.

The previous prime is 3388390274197. The next prime is 3388390274267. The reversal of 3388390274221 is 1224720938833.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3284028971721 + 104361302500 = 1812189^2 + 323050^2 .

It is a cyclic number.

It is not a de Polignac number, because 3388390274221 - 2¹⁹ = 3388389749933 is a prime.

It is a super-2 number, since 2×3388390274221² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3388390274021) 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 as a sum of consecutive naturals, namely, 1694195137110 + 1694195137111.

It is an arithmetic number, because the mean of its divisors is an integer number (1694195137111).

Almost surely, 2^{3388390274221} is an apocalyptic number.

It is an amenable number.

3388390274221 is a deficient number, since it is larger than the sum of its proper divisors (1).

3388390274221 is an equidigital number, since it uses as much as digits as its factorization.

3388390274221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3483648, while the sum is 52.

The spelling of 3388390274221 in words is "three trillion, three hundred eighty-eight billion, three hundred ninety million, two hundred seventy-four thousand, two hundred twenty-one".