12232402020 has 144 divisors (see below), whose sum is σ = 40349797488. Its totient is φ = 2987089920.

The previous prime is 12232402009. The next prime is 12232402079. The reversal of 12232402020 is 2020423221.

12232402020 is a `hidden beast` number, since 1 + 223 + 240 + 202 + 0 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 1116495396 + 11115906624 = 33414^2 + 105432^2 .

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 = 12232401984 and 12232402002.

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, 59200 + ... + 167240.

It is an arithmetic number, because the mean of its divisors is an integer number (280206927).

Almost surely, 2^12232402020 is an apocalyptic number.

12232402020 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 12232402020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20174898744).

12232402020 is an abundant number, since it is smaller than the sum of its proper divisors (28117395468).

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

12232402020 is a wasteful number, since it uses less digits than its factorization.

12232402020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108110 (or 108105 counting only the distinct ones).

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

Adding to 12232402020 its reverse (2020423221), we get a palindrome (14252825241).

The spelling of 12232402020 in words is "twelve billion, two hundred thirty-two million, four hundred two thousand, twenty".