1099109901 has 16 divisors (see below), whose sum is σ = 1570529664. Its totient is φ = 681937344.

The previous prime is 1099109881. The next prime is 1099109903. The reversal of 1099109901 is 1099019901.

It is not a de Polignac number, because 1099109901 - 2¹¹ = 1099107853 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1099109901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1099109903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 212706 + ... + 217811.

It is an arithmetic number, because the mean of its divisors is an integer number (98158104).

Almost surely, 2^1099109901 is an apocalyptic number.

It is an amenable number.

1099109901 is a deficient number, since it is larger than the sum of its proper divisors (471419763).

1099109901 is a wasteful number, since it uses less digits than its factorization.

1099109901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430580.

The product of its (nonzero) digits is 6561, while the sum is 39.

The square root of 1099109901 is about 33152.8264405918. The cubic root of 1099109901 is about 1032.0016065341.

Subtracting from 1099109901 its reverse (1099019901), we obtain a square (90000 = 300²).

The spelling of 1099109901 in words is "one billion, ninety-nine million, one hundred nine thousand, nine hundred one".