11102199122921 has 2 divisors, whose sum is σ = 11102199122922. Its totient is φ = 11102199122920.

The previous prime is 11102199122909. The next prime is 11102199122933. The reversal of 11102199122921 is 12922199120111.

11102199122921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (11102199122909) and next prime (11102199122933).

It can be written as a sum of positive squares in only one way, i.e., 10652945293225 + 449253829696 = 3263885^2 + 670264^2 .

It is a cyclic number.

It is not a de Polignac number, because 11102199122921 - 2⁴² = 6704152611817 is a prime.

It is not a weakly prime, because it can be changed into another prime (11102199122941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5551099561460 + 5551099561461.

It is an arithmetic number, because the mean of its divisors is an integer number (5551099561461).

Almost surely, 2^{11102199122921} is an apocalyptic number.

It is an amenable number.

11102199122921 is a deficient number, since it is larger than the sum of its proper divisors (1).

11102199122921 is an equidigital number, since it uses as much as digits as its factorization.

11102199122921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 41.

The spelling of 11102199122921 in words is "eleven trillion, one hundred two billion, one hundred ninety-nine million, one hundred twenty-two thousand, nine hundred twenty-one".