2221269648 has 160 divisors (see below), whose sum is σ = 6324095232. Its totient is φ = 667699200.

The previous prime is 2221269647. The next prime is 2221269653. The reversal of 2221269648 is 8469621222.

It is not an unprimeable number, because it can be changed into a prime (2221269647) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8018886 + ... + 8019162.

Almost surely, 2^2221269648 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 2221269648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3162047616).

2221269648 is an abundant number, since it is smaller than the sum of its proper divisors (4102825584).

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

2221269648 is a wasteful number, since it uses less digits than its factorization.

2221269648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553 (or 547 counting only the distinct ones).

The product of its digits is 165888, while the sum is 42.

The square root of 2221269648 is about 47130.3474207437. The cubic root of 2221269648 is about 1304.7693936408.

The spelling of 2221269648 in words is "two billion, two hundred twenty-one million, two hundred sixty-nine thousand, six hundred forty-eight".