12021023022 has 16 divisors (see below), whose sum is σ = 24137834112. Its totient is φ = 3991043000.

The previous prime is 12021022967. The next prime is 12021023029. The reversal of 12021023022 is 22032012021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12021022992 and 12021023010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12021023029) 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, 3989538 + ... + 3992549.

It is an arithmetic number, because the mean of its divisors is an integer number (1508614632).

Almost surely, 2^12021023022 is an apocalyptic number.

12021023022 is an abundant number, since it is smaller than the sum of its proper divisors (12116811090).

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

12021023022 is a wasteful number, since it uses less digits than its factorization.

12021023022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7982343.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 12021023022 its reverse (22032012021), we get a palindrome (34053035043).

The spelling of 12021023022 in words is "twelve billion, twenty-one million, twenty-three thousand, twenty-two".