12001121212132 has 24 divisors (see below), whose sum is σ = 23947938710136. Its totient is φ = 5213156725248.

The previous prime is 12001121212123. The next prime is 12001121212163. The reversal of 12001121212132 is 23121212110021.

It can be written as a sum of positive squares in 4 ways, for example, as 364726613476 + 11636394598656 = 603926^2 + 3411216^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6787963603 + ... + 6787965370.

It is an arithmetic number, because the mean of its divisors is an integer number (997830779589).

Almost surely, 2^{12001121212132} is an apocalyptic number.

It is an amenable number.

12001121212132 is a deficient number, since it is larger than the sum of its proper divisors (11946817498004).

12001121212132 is a wasteful number, since it uses less digits than its factorization.

12001121212132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13575929007 (or 13575929005 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 12001121212132 its reverse (23121212110021), we get a palindrome (35122333322153).

The spelling of 12001121212132 in words is "twelve trillion, one billion, one hundred twenty-one million, two hundred twelve thousand, one hundred thirty-two".