12101121332312 has 32 divisors (see below), whose sum is σ = 22714203420480. Its totient is φ = 6044001788160.

The previous prime is 12101121332227. The next prime is 12101121332317. The reversal of 12101121332312 is 21323312110121.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12101121332317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75146762 + ... + 75307622.

It is an arithmetic number, because the mean of its divisors is an integer number (709818856890).

Almost surely, 2^{12101121332312} is an apocalyptic number.

It is an amenable number.

12101121332312 is a deficient number, since it is larger than the sum of its proper divisors (10613082088168).

12101121332312 is a wasteful number, since it uses less digits than its factorization.

12101121332312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171003 (or 170999 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 12101121332312 its reverse (21323312110121), we get a palindrome (33424433442433).

The spelling of 12101121332312 in words is "twelve trillion, one hundred one billion, one hundred twenty-one million, three hundred thirty-two thousand, three hundred twelve".