12011124222 has 24 divisors (see below), whose sum is σ = 26281770840. Its totient is φ = 3964066800.

The previous prime is 12011124221. The next prime is 12011124233. The reversal of 12011124222 is 22242111021.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12011124195 and 12011124204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011124221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3301572 + ... + 3305207.

It is an arithmetic number, because the mean of its divisors is an integer number (1095073785).

Almost surely, 2^12011124222 is an apocalyptic number.

12011124222 is an abundant number, since it is smaller than the sum of its proper divisors (14270646618).

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

12011124222 is a wasteful number, since it uses less digits than its factorization.

12011124222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6606888 (or 6606885 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 12011124222 its reverse (22242111021), we get a palindrome (34253235243).

The spelling of 12011124222 in words is "twelve billion, eleven million, one hundred twenty-four thousand, two hundred twenty-two".