3221421100 has 18 divisors (see below), whose sum is σ = 6990484004. Its totient is φ = 1288568400.

The previous prime is 3221421061. The next prime is 3221421109. The reversal of 3221421100 is 11241223.

It is a super-3 number, since 3×3221421100³ (a number of 30 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (3221421109) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16107006 + ... + 16107205.

Almost surely, 2^3221421100 is an apocalyptic number.

It is an amenable number.

3221421100 is an abundant number, since it is smaller than the sum of its proper divisors (3769062904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3221421100 is a wasteful number, since it uses less digits than its factorization.

3221421100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32214225 (or 32214218 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 3221421100 is about 56757.5642535865. The cubic root of 3221421100 is about 1476.8934564859.

Adding to 3221421100 its reverse (11241223), we get a palindrome (3232662323).

The spelling of 3221421100 in words is "three billion, two hundred twenty-one million, four hundred twenty-one thousand, one hundred".