12202312221220 has 96 divisors (see below), whose sum is σ = 28256016402432. Its totient is φ = 4389583680000.

The previous prime is 12202312221139. The next prime is 12202312221251. The reversal of 12202312221220 is 2212221320221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 12202312221191 and 12202312221200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6803430 + ... + 8407810.

It is an arithmetic number, because the mean of its divisors is an integer number (294333504192).

Almost surely, 2^{12202312221220} is an apocalyptic number.

12202312221220 is a gapful number since it is divisible by the number (10) 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 12202312221220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14128008201216).

12202312221220 is an abundant number, since it is smaller than the sum of its proper divisors (16053704181212).

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

12202312221220 is a wasteful number, since it uses less digits than its factorization.

12202312221220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1604773 (or 1604771 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 12202312221220 its reverse (2212221320221), we get a palindrome (14414533541441).

Subtracting from 12202312221220 its reverse (2212221320221), we obtain a palindrome (9990090900999).

The spelling of 12202312221220 in words is "twelve trillion, two hundred two billion, three hundred twelve million, two hundred twenty-one thousand, two hundred twenty".