20112201003232 has 144 divisors (see below), whose sum is σ = 43495130323008. Its totient is φ = 9148706611200.

The previous prime is 20112201003221. The next prime is 20112201003239. The reversal of 20112201003232 is 23230010221102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20112201003239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 561759732 + ... + 561795532.

It is an arithmetic number, because the mean of its divisors is an integer number (302049516132).

Almost surely, 2^{20112201003232} 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 20112201003232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21747565161504).

20112201003232 is an abundant number, since it is smaller than the sum of its proper divisors (23382929319776).

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

20112201003232 is a wasteful number, since it uses less digits than its factorization.

20112201003232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37333 (or 37312 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20112201003232 its reverse (23230010221102), we get a palindrome (43342211224334).

The spelling of 20112201003232 in words is "twenty trillion, one hundred twelve billion, two hundred one million, three thousand, two hundred thirty-two".