3221601144 has 32 divisors (see below), whose sum is σ = 8167443840. Its totient is φ = 1058741600.

The previous prime is 3221601121. The next prime is 3221601223. The reversal of 3221601144 is 4411061223.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 943602 + ... + 947009.

It is an arithmetic number, because the mean of its divisors is an integer number (255232620).

Almost surely, 2^3221601144 is an apocalyptic number.

It is an amenable number.

3221601144 is an abundant number, since it is smaller than the sum of its proper divisors (4945842696).

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

3221601144 is a wasteful number, since it uses less digits than its factorization.

3221601144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1890691 (or 1890687 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 3221601144 is about 56759.1503107649. The cubic root of 3221601144 is about 1476.9209703112.

Adding to 3221601144 its reverse (4411061223), we get a palindrome (7632662367).

The spelling of 3221601144 in words is "three billion, two hundred twenty-one million, six hundred one thousand, one hundred forty-four".