12005021562 has 16 divisors (see below), whose sum is σ = 24299321760. Its totient is φ = 3953460752.

The previous prime is 12005021549. The next prime is 12005021599. The reversal of 12005021562 is 26512050021.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12052737 + ... + 12053732.

It is an arithmetic number, because the mean of its divisors is an integer number (1518707610).

Almost surely, 2^12005021562 is an apocalyptic number.

12005021562 is an abundant number, since it is smaller than the sum of its proper divisors (12294300198).

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

12005021562 is a wasteful number, since it uses less digits than its factorization.

12005021562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24106557.

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 12005021562 its reverse (26512050021), we get a palindrome (38517071583).

The spelling of 12005021562 in words is "twelve billion, five million, twenty-one thousand, five hundred sixty-two".