3230211211220 has 144 divisors (see below), whose sum is σ = 8388502456320. Its totient is φ = 1038822624000.

The previous prime is 3230211211189. The next prime is 3230211211223. The reversal of 3230211211220 is 221121120323.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 3230211211192 and 3230211211201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3230211211223) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1021805 + ... + 2739435.

It is an arithmetic number, because the mean of its divisors is an integer number (58253489280).

Almost surely, 2^{3230211211220} 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 3230211211220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4194251228160).

3230211211220 is an abundant number, since it is smaller than the sum of its proper divisors (5158291245100).

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

3230211211220 is a wasteful number, since it uses less digits than its factorization.

3230211211220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1717774 (or 1717765 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 3230211211220 its reverse (221121120323), we get a palindrome (3451332331543).

The spelling of 3230211211220 in words is "three trillion, two hundred thirty billion, two hundred eleven million, two hundred eleven thousand, two hundred twenty".