1057021100 has 18 divisors (see below), whose sum is σ = 2293736004. Its totient is φ = 422808400.

The previous prime is 1057021099. The next prime is 1057021103. The reversal of 1057021100 is 11207501.

1057021100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1057021100² = 2234587211690420000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1057021103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5285006 + ... + 5285205.

It is an arithmetic number, because the mean of its divisors is an integer number (127429778).

Almost surely, 2^1057021100 is an apocalyptic number.

1057021100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1057021100 is an abundant number, since it is smaller than the sum of its proper divisors (1236714904).

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

1057021100 is a wasteful number, since it uses less digits than its factorization.

1057021100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10570225 (or 10570218 counting only the distinct ones).

The product of its (nonzero) digits is 70, while the sum is 17.

The square root of 1057021100 is about 32511.8609125962. The cubic root of 1057021100 is about 1018.6567927573.

Adding to 1057021100 its reverse (11207501), we get a palindrome (1068228601).

The spelling of 1057021100 in words is "one billion, fifty-seven million, twenty-one thousand, one hundred".