3221010012 has 24 divisors (see below), whose sum is σ = 8198934912. Its totient is φ = 976063600.

The previous prime is 3221009983. The next prime is 3221010101. The reversal of 3221010012 is 2100101223.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 3221010012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12200664 + ... + 12200927.

It is an arithmetic number, because the mean of its divisors is an integer number (341622288).

Almost surely, 2^3221010012 is an apocalyptic number.

It is an amenable number.

3221010012 is an abundant number, since it is smaller than the sum of its proper divisors (4977924900).

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

3221010012 is a wasteful number, since it uses less digits than its factorization.

3221010012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24401609 (or 24401607 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 3221010012 is about 56753.9427000451. The cubic root of 3221010012 is about 1476.8306313138.

Adding to 3221010012 its reverse (2100101223), we get a palindrome (5321111235).

The spelling of 3221010012 in words is "three billion, two hundred twenty-one million, ten thousand, twelve".