2168221296 has 40 divisors (see below), whose sum is σ = 5720419584. Its totient is φ = 707362240.

The previous prime is 2168221277. The next prime is 2168221301. The reversal of 2168221296 is 6921228612.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 478290 + ... + 482801.

Almost surely, 2^2168221296 is an apocalyptic number.

It is an amenable number.

2168221296 is an abundant number, since it is smaller than the sum of its proper divisors (3552198288).

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

2168221296 is a wasteful number, since it uses less digits than its factorization.

2168221296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 961149 (or 961143 counting only the distinct ones).

The product of its digits is 41472, while the sum is 39.

The square root of 2168221296 is about 46564.1632159325. The cubic root of 2168221296 is about 1294.2987603935.

The spelling of 2168221296 in words is "two billion, one hundred sixty-eight million, two hundred twenty-one thousand, two hundred ninety-six".