3230121220 has 48 divisors (see below), whose sum is σ = 7154360640. Its totient is φ = 1221630336.

The previous prime is 3230121217. The next prime is 3230121241. The reversal of 3230121220 is 221210323.

It is a junction number, because it is equal to n+sod(n) for n = 3230121194 and 3230121203.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 190614 + ... + 206866.

It is an arithmetic number, because the mean of its divisors is an integer number (149049180).

Almost surely, 2^3230121220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3230121220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3577180320).

3230121220 is an abundant number, since it is smaller than the sum of its proper divisors (3924239420).

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

3230121220 is a wasteful number, since it uses less digits than its factorization.

3230121220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16804 (or 16802 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 3230121220 is about 56834.1553997242. The cubic root of 3230121220 is about 1478.2218143704.

Adding to 3230121220 its reverse (221210323), we get a palindrome (3451331543).

The spelling of 3230121220 in words is "three billion, two hundred thirty million, one hundred twenty-one thousand, two hundred twenty".