3221221230 has 128 divisors (see below), whose sum is σ = 8774438400. Its totient is φ = 840678912.

The previous prime is 3221221229. The next prime is 3221221247. The reversal of 3221221230 is 321221223.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6897457 + ... + 6897923.

It is an arithmetic number, because the mean of its divisors is an integer number (68550300).

Almost surely, 2^3221221230 is an apocalyptic number.

3221221230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3221221230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4387219200).

3221221230 is an abundant number, since it is smaller than the sum of its proper divisors (5553217170).

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

3221221230 is a wasteful number, since it uses less digits than its factorization.

3221221230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 975 (or 969 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 3221221230 is about 56755.8034918016. The cubic root of 3221221230 is about 1476.8629117055.

Adding to 3221221230 its reverse (321221223), we get a palindrome (3542442453).

The spelling of 3221221230 in words is "three billion, two hundred twenty-one million, two hundred twenty-one thousand, two hundred thirty".