12122276208 has 120 divisors (see below), whose sum is σ = 37604021760. Its totient is φ = 3351761280.

The previous prime is 12122276197. The next prime is 12122276233. The reversal of 12122276208 is 80267222121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10218 + ... + 156041.

It is an arithmetic number, because the mean of its divisors is an integer number (313366848).

Almost surely, 2^12122276208 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 12122276208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18802010880).

12122276208 is an abundant number, since it is smaller than the sum of its proper divisors (25481745552).

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

12122276208 is a wasteful number, since it uses less digits than its factorization.

12122276208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166315 (or 166302 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

Adding to 12122276208 its reverse (80267222121), we get a palindrome (92389498329).

The spelling of 12122276208 in words is "twelve billion, one hundred twenty-two million, two hundred seventy-six thousand, two hundred eight".