12021122032 has 20 divisors (see below), whose sum is σ = 23299397136. Its totient is φ = 6008374400.

The previous prime is 12021121997. The next prime is 12021122033. The reversal of 12021122032 is 23022112021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 12021121997 and 12021122015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12021122033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90844 + ... + 179707.

Almost surely, 2^12021122032 is an apocalyptic number.

It is an amenable number.

12021122032 is a deficient number, since it is larger than the sum of its proper divisors (11278275104).

12021122032 is a wasteful number, since it uses less digits than its factorization.

12021122032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273336 (or 273330 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 12021122032 its reverse (23022112021), we get a palindrome (35043234053).

The spelling of 12021122032 in words is "twelve billion, twenty-one million, one hundred twenty-two thousand, thirty-two".