12011322113228 has 6 divisors (see below), whose sum is σ = 21019813698156. Its totient is φ = 6005661056612.

The previous prime is 12011322113227. The next prime is 12011322113233. The reversal of 12011322113228 is 82231122311021.

It is a self number, because there is not a number n which added to its sum of digits gives 12011322113228.

It is not an unprimeable number, because it can be changed into a prime (12011322113227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1501415264150 + ... + 1501415264157.

It is an arithmetic number, because the mean of its divisors is an integer number (3503302283026).

Almost surely, 2^{12011322113228} is an apocalyptic number.

It is an amenable number.

12011322113228 is a deficient number, since it is larger than the sum of its proper divisors (9008491584928).

12011322113228 is a wasteful number, since it uses less digits than its factorization.

12011322113228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3002830528311 (or 3002830528309 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 29.

Adding to 12011322113228 its reverse (82231122311021), we get a palindrome (94242444424249).

The spelling of 12011322113228 in words is "twelve trillion, eleven billion, three hundred twenty-two million, one hundred thirteen thousand, two hundred twenty-eight".