2221299968 has 144 divisors (see below), whose sum is σ = 4913939520. Its totient is φ = 997785600.

The previous prime is 2221299953. The next prime is 2221299989. The reversal of 2221299968 is 8699921222.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10527383 + ... + 10527593.

It is an arithmetic number, because the mean of its divisors is an integer number (34124580).

Almost surely, 2^2221299968 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 2221299968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2456969760).

2221299968 is an abundant number, since it is smaller than the sum of its proper divisors (2692639552).

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

2221299968 is a wasteful number, since it uses less digits than its factorization.

2221299968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344 (or 330 counting only the distinct ones).

The product of its digits is 559872, while the sum is 50.

The square root of 2221299968 is about 47130.6690807589. The cubic root of 2221299968 is about 1304.7753302498.

The spelling of 2221299968 in words is "two billion, two hundred twenty-one million, two hundred ninety-nine thousand, nine hundred sixty-eight".