12420185202 has 48 divisors (see below), whose sum is σ = 28388280960. Its totient is φ = 3913642656.

The previous prime is 12420185191. The next prime is 12420185203. The reversal of 12420185202 is 20258102421.

12420185202 is a `hidden beast` number, since 124 + 2 + 0 + 18 + 520 + 2 = 666.

It is a super-3 number, since 3×12420185202³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (12420185203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 119128 + ... + 197564.

It is an arithmetic number, because the mean of its divisors is an integer number (591422520).

Almost surely, 2^12420185202 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12420185202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14194140480).

12420185202 is an abundant number, since it is smaller than the sum of its proper divisors (15968095758).

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

12420185202 is a wasteful number, since it uses less digits than its factorization.

12420185202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78927 (or 78924 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

Adding to 12420185202 its reverse (20258102421), we get a palindrome (32678287623).

The spelling of 12420185202 in words is "twelve billion, four hundred twenty million, one hundred eighty-five thousand, two hundred two".