3213323321220 has 96 divisors (see below), whose sum is σ = 9999083351040. Its totient is φ = 856708151040.

The previous prime is 3213323321207. The next prime is 3213323321293. The reversal of 3213323321220 is 221233233123.

3213323321220 is a `hidden beast` number, since 3 + 2 + 1 + 332 + 3 + 321 + 2 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1992864 + ... + 3224616.

It is an arithmetic number, because the mean of its divisors is an integer number (104157118240).

Almost surely, 2^{3213323321220} is an apocalyptic number.

3213323321220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3213323321220 is an abundant number, since it is smaller than the sum of its proper divisors (6785760029820).

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

3213323321220 is a wasteful number, since it uses less digits than its factorization.

3213323321220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1236602 (or 1236594 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 27.

Adding to 3213323321220 its reverse (221233233123), we get a palindrome (3434556554343).

The spelling of 3213323321220 in words is "three trillion, two hundred thirteen billion, three hundred twenty-three million, three hundred twenty-one thousand, two hundred twenty".