12000022434312 has 128 divisors (see below), whose sum is σ = 32830436021760. Its totient is φ = 3624918635520.

The previous prime is 12000022434277. The next prime is 12000022434391. The reversal of 12000022434312 is 21343422000021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 733355043 + ... + 733371405.

It is an arithmetic number, because the mean of its divisors is an integer number (256487781420).

Almost surely, 2^{12000022434312} is an apocalyptic number.

12000022434312 is a gapful number since it is divisible by the number (12) 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 12000022434312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16415218010880).

12000022434312 is an abundant number, since it is smaller than the sum of its proper divisors (20830413587448).

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

12000022434312 is a wasteful number, since it uses less digits than its factorization.

12000022434312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24963 (or 24959 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 12000022434312 its reverse (21343422000021), we get a palindrome (33343444434333).

The spelling of 12000022434312 in words is "twelve trillion, twenty-two million, four hundred thirty-four thousand, three hundred twelve".