11099121011 has 16 divisors (see below), whose sum is σ = 12157152000. Its totient is φ = 10049335200.

The previous prime is 11099121001. The next prime is 11099121083. The reversal of 11099121011 is 11012199011.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11099121011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11099121001) 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, 6060866 + ... + 6062696.

It is an arithmetic number, because the mean of its divisors is an integer number (759822000).

Almost surely, 2^11099121011 is an apocalyptic number.

11099121011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11099121011 is a deficient number, since it is larger than the sum of its proper divisors (1058030989).

11099121011 is a wasteful number, since it uses less digits than its factorization.

11099121011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3770.

The product of its (nonzero) digits is 162, while the sum is 26.

The spelling of 11099121011 in words is "eleven billion, ninety-nine million, one hundred twenty-one thousand, eleven".