3331202221 has 4 divisors (see below), whose sum is σ = 3402078912. Its totient is φ = 3260325532.

The previous prime is 3331202213. The next prime is 3331202233. The reversal of 3331202221 is 1222021333.

3331202221 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 a cyclic number.

It is not a de Polignac number, because 3331202221 - 2³ = 3331202213 is a prime.

It is a super-2 number, since 2×3331202221² = 22193816474390665682, 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 (3331202291) 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, 35438275 + ... + 35438368.

It is an arithmetic number, because the mean of its divisors is an integer number (850519728).

Almost surely, 2^3331202221 is an apocalyptic number.

It is an amenable number.

3331202221 is a deficient number, since it is larger than the sum of its proper divisors (70876691).

3331202221 is an equidigital number, since it uses as much as digits as its factorization.

3331202221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70876690.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 3331202221 is about 57716.5679939478. The cubic root of 3331202221 is about 1493.4831684210.

Adding to 3331202221 its reverse (1222021333), we get a palindrome (4553223554).

The spelling of 3331202221 in words is "three billion, three hundred thirty-one million, two hundred two thousand, two hundred twenty-one".