11001101010121 has 2 divisors, whose sum is σ = 11001101010122. Its totient is φ = 11001101010120.

The previous prime is 11001101010103. The next prime is 11001101010131. The reversal of 11001101010121 is 12101010110011.

It is an a-pointer prime, because the next prime (11001101010131) can be obtained adding 11001101010121 to its sum of digits (10).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9373853805625 + 1627247204496 = 3061675^2 + 1275636^2 .

It is a cyclic number.

It is not a de Polignac number, because 11001101010121 - 2⁵ = 11001101010089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11001101010098 and 11001101010107.

It is not a weakly prime, because it can be changed into another prime (11001101010131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5500550505060 + 5500550505061.

It is an arithmetic number, because the mean of its divisors is an integer number (5500550505061).

Almost surely, 2^{11001101010121} is an apocalyptic number.

It is an amenable number.

11001101010121 is a deficient number, since it is larger than the sum of its proper divisors (1).

11001101010121 is an equidigital number, since it uses as much as digits as its factorization.

11001101010121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2, while the sum is 10.

Adding to 11001101010121 its reverse (12101010110011), we get a palindrome (23102111120132).

The spelling of 11001101010121 in words is "eleven trillion, one billion, one hundred one million, ten thousand, one hundred twenty-one".