3213021100 has 72 divisors (see below), whose sum is σ = 7062048000. Its totient is φ = 1268774400.

The previous prime is 3213021083. The next prime is 3213021127. The reversal of 3213021100 is 11203123.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2845336 + ... + 2846464.

It is an arithmetic number, because the mean of its divisors is an integer number (98084000).

Almost surely, 2^3213021100 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3213021100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3531024000).

3213021100 is an abundant number, since it is smaller than the sum of its proper divisors (3849026900).

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

3213021100 is a wasteful number, since it uses less digits than its factorization.

3213021100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1483 (or 1476 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 3213021100 is about 56683.5170045049. The cubic root of 3213021100 is about 1475.6086504659.

Adding to 3213021100 its reverse (11203123), we get a palindrome (3224224223).

The spelling of 3213021100 in words is "three billion, two hundred thirteen million, twenty-one thousand, one hundred".