20112231201000 has 256 divisors, whose sum is σ = 64222863344640. Its totient is φ = 5237441798400.

The previous prime is 20112231200927. The next prime is 20112231201001. The reversal of 20112231201000 is 10213221102.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (20112231201001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 753733659 + ... + 753760341.

It is an arithmetic number, because the mean of its divisors is an integer number (250870559940).

Almost surely, 2^{20112231201000} is an apocalyptic number.

20112231201000 is a gapful number since it is divisible by the number (20) 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 20112231201000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32111431672320).

20112231201000 is an abundant number, since it is smaller than the sum of its proper divisors (44110632143640).

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

20112231201000 is a wasteful number, since it uses less digits than its factorization.

20112231201000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32593 (or 32579 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 20112231201000 its reverse (10213221102), we get a palindrome (20122444422102).

The spelling of 20112231201000 in words is "twenty trillion, one hundred twelve billion, two hundred thirty-one million, two hundred one thousand".