12133024420 has 48 divisors (see below), whose sum is σ = 27899121600. Its totient is φ = 4395585920.

The previous prime is 12133024399. The next prime is 12133024429. The reversal of 12133024420 is 2442033121.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 12133024391 and 12133024400.

It is not an unprimeable number, because it can be changed into a prime (12133024429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43330 + ... + 161689.

It is an arithmetic number, because the mean of its divisors is an integer number (581231700).

Almost surely, 2^12133024420 is an apocalyptic number.

12133024420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12133024420 is an abundant number, since it is smaller than the sum of its proper divisors (15766097180).

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

12133024420 is a wasteful number, since it uses less digits than its factorization.

12133024420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205308 (or 205306 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 12133024420 its reverse (2442033121), we get a palindrome (14575057541).

The spelling of 12133024420 in words is "twelve billion, one hundred thirty-three million, twenty-four thousand, four hundred twenty".