11102001223121 has 2 divisors, whose sum is σ = 11102001223122. Its totient is φ = 11102001223120.

The previous prime is 11102001223099. The next prime is 11102001223171. The reversal of 11102001223121 is 12132210020111.

It is a happy number.

11102001223121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7405533558721 + 3696467664400 = 2721311^2 + 1922620^2 .

It is a cyclic number.

It is not a de Polignac number, because 11102001223121 - 2⁶ = 11102001223057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11102001223121.

It is not a weakly prime, because it can be changed into another prime (11102001223171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5551000611560 + 5551000611561.

It is an arithmetic number, because the mean of its divisors is an integer number (5551000611561).

Almost surely, 2^{11102001223121} is an apocalyptic number.

It is an amenable number.

11102001223121 is a deficient number, since it is larger than the sum of its proper divisors (1).

11102001223121 is an equidigital number, since it uses as much as digits as its factorization.

11102001223121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 11102001223121 its reverse (12132210020111), we get a palindrome (23234211243232).

The spelling of 11102001223121 in words is "eleven trillion, one hundred two billion, one million, two hundred twenty-three thousand, one hundred twenty-one".