12021133122 has 24 divisors (see below), whose sum is σ = 26048294064. Its totient is φ = 4006658904.

The previous prime is 12021133081. The next prime is 12021133127. The reversal of 12021133122 is 22133112021.

12021133122 is a `hidden beast` number, since 120 + 211 + 331 + 2 + 2 = 666.

12021133122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 = 12021133095 and 12021133104.

It is not an unprimeable number, because it can be changed into a prime (12021133127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 209173 + ... + 260375.

It is an arithmetic number, because the mean of its divisors is an integer number (1085345586).

Almost surely, 2^12021133122 is an apocalyptic number.

12021133122 is an abundant number, since it is smaller than the sum of its proper divisors (14027160942).

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

12021133122 is a wasteful number, since it uses less digits than its factorization.

12021133122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64254 (or 64251 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 12021133122 its reverse (22133112021), we get a palindrome (34154245143).

The spelling of 12021133122 in words is "twelve billion, twenty-one million, one hundred thirty-three thousand, one hundred twenty-two".