2211456256 has 72 divisors (see below), whose sum is σ = 4731156864. Its totient is φ = 1028966400.

The previous prime is 2211456209. The next prime is 2211456281. The reversal of 2211456256 is 6526541122.

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, 212781 + ... + 222931.

It is an arithmetic number, because the mean of its divisors is an integer number (65710512).

Almost surely, 2^2211456256 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 2211456256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2365578432).

2211456256 is an abundant number, since it is smaller than the sum of its proper divisors (2519700608).

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

2211456256 is a wasteful number, since it uses less digits than its factorization.

2211456256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10227 (or 10213 counting only the distinct ones).

The product of its digits is 28800, while the sum is 34.

The square root of 2211456256 is about 47026.1231232174. The cubic root of 2211456256 is about 1302.8451013851.

Adding to 2211456256 its reverse (6526541122), we get a palindrome (8737997378).

The spelling of 2211456256 in words is "two billion, two hundred eleven million, four hundred fifty-six thousand, two hundred fifty-six".