1100001099852 has 120 divisors (see below), whose sum is σ = 2891935016432. Its totient is φ = 364588646400.

The previous prime is 1100001099823. The next prime is 1100001099853. The reversal of 1100001099852 is 2589901000011.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1100001099853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 208291452 + ... + 208296732.

Almost surely, 2^{1100001099852} is an apocalyptic number.

1100001099852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1100001099852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1445967508216).

1100001099852 is an abundant number, since it is smaller than the sum of its proper divisors (1791933916580).

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

1100001099852 is a wasteful number, since it uses less digits than its factorization.

1100001099852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8821 (or 8810 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 36.

Adding to 1100001099852 its reverse (2589901000011), we get a palindrome (3689902099863).

The spelling of 1100001099852 in words is "one trillion, one hundred billion, one million, ninety-nine thousand, eight hundred fifty-two".