12023042220 has 144 divisors (see below), whose sum is σ = 43223701248. Its totient is φ = 2748116160.

The previous prime is 12023042191. The next prime is 12023042231. The reversal of 12023042220 is 2224032021.

12023042220 is a `hidden beast` number, since 12 + 0 + 230 + 422 + 2 + 0 = 666.

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 = 12023042193 and 12023042202.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 142686 + ... + 210725.

It is an arithmetic number, because the mean of its divisors is an integer number (300164592).

Almost surely, 2^12023042220 is an apocalyptic number.

12023042220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12023042220 is an abundant number, since it is smaller than the sum of its proper divisors (31200659028).

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

12023042220 is a wasteful number, since it uses less digits than its factorization.

12023042220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353442 (or 353428 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 12023042220 its reverse (2224032021), we get a palindrome (14247074241).

The spelling of 12023042220 in words is "twelve billion, twenty-three million, forty-two thousand, two hundred twenty".