3315556221 has 8 divisors (see below), whose sum is σ = 4653412320. Its totient is φ = 2094035472.

The previous prime is 3315556217. The next prime is 3315556243. The reversal of 3315556221 is 1226555133.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3315556221 - 2² = 3315556217 is a prime.

It is a super-2 number, since 2×3315556221² = 21985826109223601682, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3315556201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29083770 + ... + 29083883.

It is an arithmetic number, because the mean of its divisors is an integer number (581676540).

Almost surely, 2^3315556221 is an apocalyptic number.

It is an amenable number.

3315556221 is a deficient number, since it is larger than the sum of its proper divisors (1337856099).

3315556221 is a wasteful number, since it uses less digits than its factorization.

3315556221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58167675.

The product of its digits is 27000, while the sum is 33.

The square root of 3315556221 is about 57580.8667961850. The cubic root of 3315556221 is about 1491.1412994985.

The spelling of 3315556221 in words is "three billion, three hundred fifteen million, five hundred fifty-six thousand, two hundred twenty-one".