20112210031232 has 192 divisors, whose sum is σ = 44324233611840. Its totient is φ = 9014216540160.

The previous prime is 20112210031231. The next prime is 20112210031237. The reversal of 20112210031232 is 23213001221102.

It is not an unprimeable number, because it can be changed into a prime (20112210031231) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16444978973 + ... + 16444980195.

It is an arithmetic number, because the mean of its divisors is an integer number (230855383395).

Almost surely, 2^{20112210031232} is an apocalyptic number.

20112210031232 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 20112210031232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22162116805920).

20112210031232 is an abundant number, since it is smaller than the sum of its proper divisors (24212023580608).

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

20112210031232 is an equidigital number, since it uses as much as digits as its factorization.

20112210031232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2039 (or 1680 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 20112210031232 its reverse (23213001221102), we get a palindrome (43325211252334).

The spelling of 20112210031232 in words is "twenty trillion, one hundred twelve billion, two hundred ten million, thirty-one thousand, two hundred thirty-two".