12012231023100 has 1152 divisors, whose sum is σ = 49684320000000. Its totient is φ = 2467816243200.

The previous prime is 12012231023083. The next prime is 12012231023159. The reversal of 12012231023100 is 132013221021.

12012231023100 is a `hidden beast` number, since 1 + 2 + 0 + 122 + 310 + 231 + 0 + 0 = 666.

It is a super-2 number, since 2×12012231023100² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 906645276 + ... + 906658524.

It is an arithmetic number, because the mean of its divisors is an integer number (43128750000).

Almost surely, 2^{12012231023100} is an apocalyptic number.

12012231023100 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 12012231023100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24842160000000).

12012231023100 is an abundant number, since it is smaller than the sum of its proper divisors (37672088976900).

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

12012231023100 is a wasteful number, since it uses less digits than its factorization.

12012231023100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13393 (or 13366 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 12012231023100 its reverse (132013221021), we get a palindrome (12144244244121).

The spelling of 12012231023100 in words is "twelve trillion, twelve billion, two hundred thirty-one million, twenty-three thousand, one hundred".