3201220988 has 24 divisors (see below), whose sum is σ = 6523245792. Its totient is φ = 1346065344.

The previous prime is 3201220987. The next prime is 3201221011. The reversal of 3201220988 is 8890221023.

It is a super-2 number, since 2×3201220988² = 20495631628023392288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3201220987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1077095 + ... + 1080062.

It is an arithmetic number, because the mean of its divisors is an integer number (271801908).

Almost surely, 2^3201220988 is an apocalyptic number.

It is an amenable number.

3201220988 is an abundant number, since it is smaller than the sum of its proper divisors (3322024804).

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

3201220988 is a wasteful number, since it uses less digits than its factorization.

3201220988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2157221 (or 2157219 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 3201220988 is about 56579.3335768459. Note that the first 3 decimals coincide. The cubic root of 3201220988 is about 1473.7999988840.

Adding to 3201220988 its sum of digits (35), we get a palindrome (3201221023).

The spelling of 3201220988 in words is "three billion, two hundred one million, two hundred twenty thousand, nine hundred eighty-eight".