1100225500 has 48 divisors (see below), whose sum is σ = 2621350368. Its totient is φ = 400080000.

The previous prime is 1100225459. The next prime is 1100225501. The reversal of 1100225500 is 55220011.

It is a hoax number, since the sum of its digits (16) coincides with the sum of the digits of its distinct prime factors.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100225501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94521 + ... + 105520.

It is an arithmetic number, because the mean of its divisors is an integer number (54611466).

Almost surely, 2^1100225500 is an apocalyptic number.

1100225500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1100225500 is an abundant number, since it is smaller than the sum of its proper divisors (1521124868).

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

1100225500 is a wasteful number, since it uses less digits than its factorization.

1100225500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200071 (or 200059 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 1100225500 is about 33169.6472697555. The cubic root of 1100225500 is about 1032.3506497780.

Adding to 1100225500 its reverse (55220011), we get a palindrome (1155445511).

The spelling of 1100225500 in words is "one billion, one hundred million, two hundred twenty-five thousand, five hundred".