2012331223500 has 384 divisors, whose sum is σ = 6401193716736. Its totient is φ = 488265523200.

The previous prime is 2012331223457. The next prime is 2012331223501. The reversal of 2012331223500 is 53221332102.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2012331223501) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 885318364 + ... + 885320636.

It is an arithmetic number, because the mean of its divisors is an integer number (16669775304).

Almost surely, 2^{2012331223500} is an apocalyptic number.

2012331223500 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 2012331223500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3200596858368).

2012331223500 is an abundant number, since it is smaller than the sum of its proper divisors (4388862493236).

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

2012331223500 is a wasteful number, since it uses less digits than its factorization.

2012331223500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2938 (or 2926 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

Adding to 2012331223500 its reverse (53221332102), we get a palindrome (2065552555602).

The spelling of 2012331223500 in words is "two trillion, twelve billion, three hundred thirty-one million, two hundred twenty-three thousand, five hundred".