12142211323312 has 120 divisors (see below), whose sum is σ = 27401550920640. Its totient is φ = 5197133450880.

The previous prime is 12142211323309. The next prime is 12142211323381. The reversal of 12142211323312 is 21332311224121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2877981139 + ... + 2877985357.

It is an arithmetic number, because the mean of its divisors is an integer number (228346257672).

Almost surely, 2^{12142211323312} is an apocalyptic number.

It is an amenable number.

12142211323312 is an abundant number, since it is smaller than the sum of its proper divisors (15259339597328).

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

12142211323312 is a wasteful number, since it uses less digits than its factorization.

12142211323312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8079 (or 8066 counting only the distinct ones).

The product of its digits is 3456, while the sum is 28.

Adding to 12142211323312 its reverse (21332311224121), we get a palindrome (33474522547433).

The spelling of 12142211323312 in words is "twelve trillion, one hundred forty-two billion, two hundred eleven million, three hundred twenty-three thousand, three hundred twelve".