1057220000 has 60 divisors (see below), whose sum is σ = 2600968986. Its totient is φ = 422880000.

The previous prime is 1057219967. The next prime is 1057220023. The reversal of 1057220000 is 227501.

1057220000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 5 ways, for example, as 38588944 + 1018631056 = 6212^2 + 31916^2 .

It is a super-2 number, since 2×1057220000² = 2235428256800000000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 6431 + ... + 46430.

Almost surely, 2^1057220000 is an apocalyptic number.

1057220000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1057220000 is an abundant number, since it is smaller than the sum of its proper divisors (1543748986).

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

1057220000 is an frugal number, since it uses more digits than its factorization.

1057220000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52891 (or 52868 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 17.

The square root of 1057220000 is about 32514.9196523688. The cubic root of 1057220000 is about 1018.7206824087.

Adding to 1057220000 its reverse (227501), we get a palindrome (1057447501).

The spelling of 1057220000 in words is "one billion, fifty-seven million, two hundred twenty thousand".