2321220221232 has 360 divisors, whose sum is σ = 7070768535600. Its totient is φ = 655418649600.

The previous prime is 2321220221231. The next prime is 2321220221239.

2321220221232 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (2321220221231) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 127888894 + ... + 127907042.

It is an arithmetic number, because the mean of its divisors is an integer number (19641023710).

Almost surely, 2^{2321220221232} is an apocalyptic number.

2321220221232 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2321220221232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3535384267800).

2321220221232 is an abundant number, since it is smaller than the sum of its proper divisors (4749548314368).

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

2321220221232 is a wasteful number, since it uses less digits than its factorization.

2321220221232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18281 (or 18245 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

It can be divided in two parts, 2321220 and 221232, that added together give a palindrome (2542452).

The spelling of 2321220221232 in words is "two trillion, three hundred twenty-one billion, two hundred twenty million, two hundred twenty-one thousand, two hundred thirty-two".