3333020221 has 4 divisors (see below), whose sum is σ = 3529080252. Its totient is φ = 3136960192.

The previous prime is 3333020213. The next prime is 3333020227. The reversal of 3333020221 is 1220203333.

It is a happy number.

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 1522092196 + 1810928025 = 39014^2 + 42555^2 .

It is a cyclic number.

It is not a de Polignac number, because 3333020221 - 2³ = 3333020213 is a prime.

It is a super-2 number, since 2×3333020221² = 22218047587189777682, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3333020227) 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, 98029990 + ... + 98030023.

It is an arithmetic number, because the mean of its divisors is an integer number (882270063).

Almost surely, 2^3333020221 is an apocalyptic number.

It is an amenable number.

3333020221 is a deficient number, since it is larger than the sum of its proper divisors (196060031).

3333020221 is a wasteful number, since it uses less digits than its factorization.

3333020221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196060030.

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 3333020221 is about 57732.3152229321. The cubic root of 3333020221 is about 1493.7548079512.

Adding to 3333020221 its reverse (1220203333), we get a palindrome (4553223554).

The spelling of 3333020221 in words is "three billion, three hundred thirty-three million, twenty thousand, two hundred twenty-one".