3221124500 has 96 divisors (see below), whose sum is σ = 7723707264. Its totient is φ = 1163808000.

The previous prime is 3221124499. The next prime is 3221124527. The reversal of 3221124500 is 54211223.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 894704 + ... + 898296.

It is an arithmetic number, because the mean of its divisors is an integer number (80455284).

Almost surely, 2^3221124500 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 3221124500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3861853632).

3221124500 is an abundant number, since it is smaller than the sum of its proper divisors (4502582764).

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

3221124500 is a wasteful number, since it uses less digits than its factorization.

3221124500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3786 (or 3774 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 3221124500 is about 56754.9513258535. The cubic root of 3221124500 is about 1476.8481286601.

Adding to 3221124500 its reverse (54211223), we get a palindrome (3275335723).

It can be divided in two parts, 3221 and 124500, that added together give a palindrome (127721).

The spelling of 3221124500 in words is "three billion, two hundred twenty-one million, one hundred twenty-four thousand, five hundred".