12022920 has 192 divisors, whose sum is σ = 48222720. Its totient is φ = 2529792.

The previous prime is 12022919. The next prime is 12022937. The reversal of 12022920 is 2922021.

12022920 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12022893 and 12022902.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 32577 + ... + 32943.

It is an arithmetic number, because the mean of its divisors is an integer number (251160).

Almost surely, 2^12022920 is an apocalyptic number.

12022920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12022920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24111360).

12022920 is an abundant number, since it is smaller than the sum of its proper divisors (36199800).

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

12022920 is a wasteful number, since it uses less digits than its factorization.

12022920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404 (or 397 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 12022920 is about 3467.4082540134. The cubic root of 12022920 is about 229.0885160885.

Adding to 12022920 its reverse (2922021), we get a palindrome (14944941).

The spelling of 12022920 in words is "twelve million, twenty-two thousand, nine hundred twenty".