3221211444 has 24 divisors (see below), whose sum is σ = 8199447648. Its totient is φ = 976124640.

The previous prime is 3221211431. The next prime is 3221211451. The reversal of 3221211444 is 4441121223.

It is a nude number because it is divisible by every one of its digits.

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, 12201427 + ... + 12201690.

It is an arithmetic number, because the mean of its divisors is an integer number (341643652).

Almost surely, 2^3221211444 is an apocalyptic number.

It is an amenable number.

3221211444 is an abundant number, since it is smaller than the sum of its proper divisors (4978236204).

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

3221211444 is a wasteful number, since it uses less digits than its factorization.

3221211444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24403135 (or 24403133 counting only the distinct ones).

The product of its digits is 1536, while the sum is 24.

The square root of 3221211444 is about 56755.7172802882. The cubic root of 3221211444 is about 1476.8614161448.

Adding to 3221211444 its reverse (4441121223), we get a palindrome (7662332667).

The spelling of 3221211444 in words is "three billion, two hundred twenty-one million, two hundred eleven thousand, four hundred forty-four".