2222271456 has 96 divisors (see below), whose sum is σ = 6036000768. Its totient is φ = 715153920.

The previous prime is 2222271449. The next prime is 2222271461. The reversal of 2222271456 is 6541722222.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

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, 2014201 + ... + 2015303.

It is an arithmetic number, because the mean of its divisors is an integer number (62875008).

Almost surely, 2^2222271456 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 2222271456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3018000384).

2222271456 is an abundant number, since it is smaller than the sum of its proper divisors (3813729312).

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

2222271456 is a wasteful number, since it uses less digits than its factorization.

2222271456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1824 (or 1816 counting only the distinct ones).

The product of its digits is 26880, while the sum is 33.

The square root of 2222271456 is about 47140.9742792828. The cubic root of 2222271456 is about 1304.9655175046.

Adding to 2222271456 its reverse (6541722222), we get a palindrome (8763993678).

The spelling of 2222271456 in words is "two billion, two hundred twenty-two million, two hundred seventy-one thousand, four hundred fifty-six".