3333257221 has 32 divisors (see below), whose sum is σ = 4149877248. Its totient is φ = 2615120640.

The previous prime is 3333257203. The next prime is 3333257233. The reversal of 3333257221 is 1227523333.

It is a cyclic number.

It is not a de Polignac number, because 3333257221 - 2⁵ = 3333257189 is a prime.

It is a super-2 number, since 2×3333257221² = 22221207402697285682, 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 (3333257261) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 358791 + ... + 367963.

It is an arithmetic number, because the mean of its divisors is an integer number (129683664).

Almost surely, 2^3333257221 is an apocalyptic number.

It is an amenable number.

3333257221 is a deficient number, since it is larger than the sum of its proper divisors (816620027).

3333257221 is a wasteful number, since it uses less digits than its factorization.

3333257221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9301.

The product of its digits is 22680, while the sum is 31.

The square root of 3333257221 is about 57734.3677630577. The cubic root of 3333257221 is about 1493.7902124268.

The spelling of 3333257221 in words is "three billion, three hundred thirty-three million, two hundred fifty-seven thousand, two hundred twenty-one".