12211131322188 has 48 divisors (see below), whose sum is σ = 31658849474560. Its totient is φ = 4070330710992.

The previous prime is 12211131322147. The next prime is 12211131322189. The reversal of 12211131322188 is 88122313111221.

12211131322188 is a `hidden beast` number, since 1 + 2 + 2 + 111 + 313 + 221 + 8 + 8 = 666.

It is a super-2 number, since 2×12211131322188² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (12211131322189) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9629145 + ... + 10823247.

Almost surely, 2^{12211131322188} is an apocalyptic number.

12211131322188 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12211131322188 is an abundant number, since it is smaller than the sum of its proper divisors (19447718152372).

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

12211131322188 is a wasteful number, since it uses less digits than its factorization.

12211131322188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1288803 (or 1288795 counting only the distinct ones).

The product of its digits is 9216, while the sum is 36.

The spelling of 12211131322188 in words is "twelve trillion, two hundred eleven billion, one hundred thirty-one million, three hundred twenty-two thousand, one hundred eighty-eight".