12222805716 has 144 divisors (see below), whose sum is σ = 36793935360. Its totient is φ = 3508881120.

The previous prime is 12222805709. The next prime is 12222805717. The reversal of 12222805716 is 61750822221.

It is a happy number.

12222805716 is a `hidden beast` number, since 1 + 2 + 2 + 2 + 2 + 80 + 571 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12222805717) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 173065 + ... + 233231.

It is an arithmetic number, because the mean of its divisors is an integer number (255513440).

Almost surely, 2^12222805716 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12222805716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18396967680).

12222805716 is an abundant number, since it is smaller than the sum of its proper divisors (24571129644).

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

12222805716 is a wasteful number, since it uses less digits than its factorization.

12222805716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60216 (or 60202 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The spelling of 12222805716 in words is "twelve billion, two hundred twenty-two million, eight hundred five thousand, seven hundred sixteen".