20111102099 has 16 divisors (see below), whose sum is σ = 22655407104. Its totient is φ = 17686567200.

The previous prime is 20111102093. The next prime is 20111102111. The reversal of 20111102099 is 99020111102.

It is a cyclic number.

It is not a de Polignac number, because 20111102099 - 2²⁸ = 19842666643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20111102093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1083017 + ... + 1101429.

It is an arithmetic number, because the mean of its divisors is an integer number (1415962944).

Almost surely, 2^20111102099 is an apocalyptic number.

20111102099 is a deficient number, since it is larger than the sum of its proper divisors (2544305005).

20111102099 is a wasteful number, since it uses less digits than its factorization.

20111102099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21658.

The product of its (nonzero) digits is 324, while the sum is 26.

The spelling of 20111102099 in words is "twenty billion, one hundred eleven million, one hundred two thousand, ninety-nine".