12001343421112 has 8 divisors (see below), whose sum is σ = 22502518914600. Its totient is φ = 6000671710552.

The previous prime is 12001343421083. The next prime is 12001343421131. The reversal of 12001343421112 is 21112434310021.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×12001343421112² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 750083963812 + ... + 750083963827.

It is an arithmetic number, because the mean of its divisors is an integer number (2812814864325).

Almost surely, 2^{12001343421112} is an apocalyptic number.

It is an amenable number.

12001343421112 is a deficient number, since it is larger than the sum of its proper divisors (10501175493488).

12001343421112 is a wasteful number, since it uses less digits than its factorization.

12001343421112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1500167927645 (or 1500167927641 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 12001343421112 its reverse (21112434310021), we get a palindrome (33113777731133).

The spelling of 12001343421112 in words is "twelve trillion, one billion, three hundred forty-three million, four hundred twenty-one thousand, one hundred twelve".