12021011122 has 16 divisors (see below), whose sum is σ = 18073927872. Its totient is φ = 5996386480.

The previous prime is 12021011099. The next prime is 12021011129. The reversal of 12021011122 is 22111012021.

It is not an unprimeable number, because it can be changed into a prime (12021011129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1683123 + ... + 1690249.

It is an arithmetic number, because the mean of its divisors is an integer number (1129620492).

Almost surely, 2^12021011122 is an apocalyptic number.

12021011122 is a deficient number, since it is larger than the sum of its proper divisors (6052916750).

12021011122 is a wasteful number, since it uses less digits than its factorization.

12021011122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8993.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12021011122 its reverse (22111012021), we get a palindrome (34132023143).

The spelling of 12021011122 in words is "twelve billion, twenty-one million, eleven thousand, one hundred twenty-two".