11221211012101 has 2 divisors, whose sum is σ = 11221211012102. Its totient is φ = 11221211012100.

The previous prime is 11221211012021. The next prime is 11221211012113. The reversal of 11221211012101 is 10121011212211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10214096402500 + 1007114609601 = 3195950^2 + 1003551^2 .

It is a cyclic number.

It is not a de Polignac number, because 11221211012101 - 2¹³ = 11221211003909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11221211012161) 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, 5610605506050 + 5610605506051.

It is an arithmetic number, because the mean of its divisors is an integer number (5610605506051).

Almost surely, 2^{11221211012101} is an apocalyptic number.

It is an amenable number.

11221211012101 is a deficient number, since it is larger than the sum of its proper divisors (1).

11221211012101 is an equidigital number, since it uses as much as digits as its factorization.

11221211012101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 11221211012101 its reverse (10121011212211), we get a palindrome (21342222224312).

The spelling of 11221211012101 in words is "eleven trillion, two hundred twenty-one billion, two hundred eleven million, twelve thousand, one hundred one".