3221144530 has 64 divisors (see below), whose sum is σ = 6376942080. Its totient is φ = 1166577664.

The previous prime is 3221144477. The next prime is 3221144539. The reversal of 3221144530 is 354411223.

It is a junction number, because it is equal to n+sod(n) for n = 3221144495 and 3221144504.

It is not an unprimeable number, because it can be changed into a prime (3221144539) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 467994 + ... + 474826.

It is an arithmetic number, because the mean of its divisors is an integer number (99639720).

Almost surely, 2^3221144530 is an apocalyptic number.

3221144530 is a deficient number, since it is larger than the sum of its proper divisors (3155797550).

3221144530 is a wasteful number, since it uses less digits than its factorization.

3221144530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6963.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 3221144530 is about 56755.1277859543. The cubic root of 3221144530 is about 1476.8511898277.

Adding to 3221144530 its reverse (354411223), we get a palindrome (3575555753).

The spelling of 3221144530 in words is "three billion, two hundred twenty-one million, one hundred forty-four thousand, five hundred thirty".