12400500522 has 8 divisors (see below), whose sum is σ = 24801001056. Its totient is φ = 4133500172.

The previous prime is 12400500521. The next prime is 12400500529. The reversal of 12400500522 is 22500500421.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

12400500522 is an admirable number.

It is a super-2 number, since 2×12400500522² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12400500521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1033375038 + ... + 1033375049.

It is an arithmetic number, because the mean of its divisors is an integer number (3100125132).

Almost surely, 2^12400500522 is an apocalyptic number.

12400500522 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12400500522 is a wasteful number, since it uses less digits than its factorization.

12400500522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2066750092.

The product of its (nonzero) digits is 800, while the sum is 21.

The spelling of 12400500522 in words is "twelve billion, four hundred million, five hundred thousand, five hundred twenty-two".