12021022120 has 32 divisors (see below), whose sum is σ = 27057564000. Its totient is φ = 4806584128.

The previous prime is 12021022103. The next prime is 12021022127. The reversal of 12021022120 is 2122012021.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12021022120.

It is not an unprimeable number, because it can be changed into a prime (12021022127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52287 + ... + 163633.

It is an arithmetic number, because the mean of its divisors is an integer number (845548875).

Almost surely, 2^12021022120 is an apocalyptic number.

12021022120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12021022120 is an abundant number, since it is smaller than the sum of its proper divisors (15036541880).

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

12021022120 is a wasteful number, since it uses less digits than its factorization.

12021022120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114057 (or 114053 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12021022120 its reverse (2122012021), we get a palindrome (14143034141).

The spelling of 12021022120 in words is "twelve billion, twenty-one million, twenty-two thousand, one hundred twenty".