12021422132 has 24 divisors (see below), whose sum is σ = 22148599200. Its totient is φ = 5693361696.

The previous prime is 12021422131. The next prime is 12021422173. The reversal of 12021422132 is 23122412021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12021422131) 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, 603443 + ... + 623045.

It is an arithmetic number, because the mean of its divisors is an integer number (922858300).

Almost surely, 2^12021422132 is an apocalyptic number.

It is an amenable number.

12021422132 is a deficient number, since it is larger than the sum of its proper divisors (10127177068).

12021422132 is a wasteful number, since it uses less digits than its factorization.

12021422132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27695 (or 27693 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 12021422132 its reverse (23122412021), we get a palindrome (35143834153).

The spelling of 12021422132 in words is "twelve billion, twenty-one million, four hundred twenty-two thousand, one hundred thirty-two".