3331132221 has 4 divisors (see below), whose sum is σ = 4441509632. Its totient is φ = 2220754812.

The previous prime is 3331132177. The next prime is 3331132223. The reversal of 3331132221 is 1222311333.

3331132221 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 3331132221 - 2⁹ = 3331131709 is a prime.

It is a super-2 number, since 2×3331132221² = 22192883747568785682, which 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 (3331132223) 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, 555188701 + ... + 555188706.

It is an arithmetic number, because the mean of its divisors is an integer number (1110377408).

Almost surely, 2^3331132221 is an apocalyptic number.

It is an amenable number.

3331132221 is a deficient number, since it is larger than the sum of its proper divisors (1110377411).

3331132221 is a wasteful number, since it uses less digits than its factorization.

3331132221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110377410.

The product of its digits is 648, while the sum is 21.

The square root of 3331132221 is about 57715.9615790987. The cubic root of 3331132221 is about 1493.4727072774.

Adding to 3331132221 its reverse (1222311333), we get a palindrome (4553443554).

The spelling of 3331132221 in words is "three billion, three hundred thirty-one million, one hundred thirty-two thousand, two hundred twenty-one".