11021012099 has 4 divisors (see below), whose sum is σ = 11021581800. Its totient is φ = 11020442400.

The previous prime is 11021012087. The next prime is 11021012113. The reversal of 11021012099 is 99021012011.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11021012099 - 2⁴ = 11021012083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11021015099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 254774 + ... + 294875.

It is an arithmetic number, because the mean of its divisors is an integer number (2755395450).

Almost surely, 2^11021012099 is an apocalyptic number.

11021012099 is a deficient number, since it is larger than the sum of its proper divisors (569701).

11021012099 is an equidigital number, since it uses as much as digits as its factorization.

11021012099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569700.

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

The spelling of 11021012099 in words is "eleven billion, twenty-one million, twelve thousand, ninety-nine".