2122665288 has 64 divisors (see below), whose sum is σ = 5674561920. Its totient is φ = 659328000.

The previous prime is 2122665283. The next prime is 2122665319. The reversal of 2122665288 is 8825662212.

It is not an unprimeable number, because it can be changed into a prime (2122665283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15453 + ... + 66963.

It is an arithmetic number, because the mean of its divisors is an integer number (88665030).

Almost surely, 2^2122665288 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 2122665288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2837280960).

2122665288 is an abundant number, since it is smaller than the sum of its proper divisors (3551896632).

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

2122665288 is a wasteful number, since it uses less digits than its factorization.

2122665288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51638 (or 51634 counting only the distinct ones).

The product of its digits is 184320, while the sum is 42.

The square root of 2122665288 is about 46072.3918198307. The cubic root of 2122665288 is about 1285.1697834172.

The spelling of 2122665288 in words is "two billion, one hundred twenty-two million, six hundred sixty-five thousand, two hundred eighty-eight".