12023120220 has 48 divisors (see below), whose sum is σ = 33779682720. Its totient is φ = 3195218176.

The previous prime is 12023120209. The next prime is 12023120261. The reversal of 12023120220 is 2202132021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12023120220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 324375 + ... + 359534.

It is an arithmetic number, because the mean of its divisors is an integer number (703743390).

Almost surely, 2^12023120220 is an apocalyptic number.

12023120220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12023120220 is an abundant number, since it is smaller than the sum of its proper divisors (21756562500).

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

12023120220 is a wasteful number, since it uses less digits than its factorization.

12023120220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684214 (or 684212 counting only the distinct ones).

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

Adding to 12023120220 its reverse (2202132021), we get a palindrome (14225252241).

The spelling of 12023120220 in words is "twelve billion, twenty-three million, one hundred twenty thousand, two hundred twenty".