3331033332421 has 4 divisors (see below), whose sum is σ = 3331854394732. Its totient is φ = 3330212270112.

The previous prime is 3331033332413. The next prime is 3331033332461. The reversal of 3331033332421 is 1242333301333.

3331033332421 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 2791522516225 + 539510816196 = 1670785^2 + 734514^2 .

It is a cyclic number.

It is not a de Polignac number, because 3331033332421 - 2³ = 3331033332413 is a prime.

It is a super-2 number, since 2×3331033332421² (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 (3331033332461) 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, 410525070 + ... + 410533183.

It is an arithmetic number, because the mean of its divisors is an integer number (832963598683).

Almost surely, 2^{3331033332421} is an apocalyptic number.

It is an amenable number.

3331033332421 is a deficient number, since it is larger than the sum of its proper divisors (821062311).

3331033332421 is an equidigital number, since it uses as much as digits as its factorization.

3331033332421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821062310.

The product of its (nonzero) digits is 34992, while the sum is 31.

Adding to 3331033332421 its reverse (1242333301333), we get a palindrome (4573366633754).

The spelling of 3331033332421 in words is "three trillion, three hundred thirty-one billion, thirty-three million, three hundred thirty-two thousand, four hundred twenty-one".