3321220144 has 40 divisors (see below), whose sum is σ = 7028956368. Its totient is φ = 1507687680.

The previous prime is 3321220141. The next prime is 3321220207. The reversal of 3321220144 is 4410221233.

3321220144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×3321220144² = 22061006489822761472, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (3321220141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128434 + ... + 152110.

Almost surely, 2^3321220144 is an apocalyptic number.

It is an amenable number.

3321220144 is an abundant number, since it is smaller than the sum of its proper divisors (3707736224).

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

3321220144 is a wasteful number, since it uses less digits than its factorization.

3321220144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24493 (or 24487 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 3321220144 is about 57630.0281450565. The cubic root of 3321220144 is about 1491.9899157653.

Adding to 3321220144 its reverse (4410221233), we get a palindrome (7731441377).

The spelling of 3321220144 in words is "three billion, three hundred twenty-one million, two hundred twenty thousand, one hundred forty-four".