1056221088 has 192 divisors, whose sum is σ = 3218890752. Its totient is φ = 300579840.

The previous prime is 1056221087. The next prime is 1056221113. The reversal of 1056221088 is 8801226501.

It is a super-2 number, since 2×1056221088² = 2231205973471807488, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1056221081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 889231 + ... + 890417.

It is an arithmetic number, because the mean of its divisors is an integer number (16765056).

Almost surely, 2^1056221088 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 1056221088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1609445376).

1056221088 is an abundant number, since it is smaller than the sum of its proper divisors (2162669664).

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

1056221088 is a wasteful number, since it uses less digits than its factorization.

1056221088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1267 (or 1259 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 33.

The square root of 1056221088 is about 32499.5551969562. Note that the first 3 decimals coincide. The cubic root of 1056221088 is about 1018.3997359709.

Adding to 1056221088 its reverse (8801226501), we get a palindrome (9857447589).

The spelling of 1056221088 in words is "one billion, fifty-six million, two hundred twenty-one thousand, eighty-eight".