12222506016 has 120 divisors (see below), whose sum is σ = 41081261760. Its totient is φ = 3492139392.

The previous prime is 12222506003. The next prime is 12222506017. The reversal of 12222506016 is 61060522221.

12222506016 is a `hidden beast` number, since 1 + 2 + 2 + 2 + 2 + 50 + 601 + 6 = 666.

It is a super-2 number, since 2×12222506016² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (12222506017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 318676 + ... + 354963.

It is an arithmetic number, because the mean of its divisors is an integer number (342343848).

Almost surely, 2^12222506016 is an apocalyptic number.

12222506016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12222506016 is an abundant number, since it is smaller than the sum of its proper divisors (28858755744).

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

12222506016 is an equidigital number, since it uses as much as digits as its factorization.

12222506016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673668 (or 673651 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The spelling of 12222506016 in words is "twelve billion, two hundred twenty-two million, five hundred six thousand, sixteen".