12011222200122 has 64 divisors (see below), whose sum is σ = 26712862992000. Its totient is φ = 4000552934400.

The previous prime is 12011222200111. The next prime is 12011222200129. The reversal of 12011222200122 is 22100222211021.

It is a happy number.

12011222200122 is a `hidden beast` number, since 1 + 201 + 122 + 220 + 0 + 122 = 666.

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 = 12011222200095 and 12011222200104.

It is not an unprimeable number, because it can be changed into a prime (12011222200129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 873092068 + ... + 873105824.

It is an arithmetic number, because the mean of its divisors is an integer number (417388484250).

Almost surely, 2^{12011222200122} is an apocalyptic number.

12011222200122 is an abundant number, since it is smaller than the sum of its proper divisors (14701640791878).

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

12011222200122 is a wasteful number, since it uses less digits than its factorization.

12011222200122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25468 (or 25462 counting only the distinct ones).

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

Adding to 12011222200122 its reverse (22100222211021), we get a palindrome (34111444411143).

The spelling of 12011222200122 in words is "twelve trillion, eleven billion, two hundred twenty-two million, two hundred thousand, one hundred twenty-two".