10011144242221 has 2 divisors, whose sum is σ = 10011144242222. Its totient is φ = 10011144242220.

The previous prime is 10011144242191. The next prime is 10011144242227. The reversal of 10011144242221 is 12224244111001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9999477218025 + 11667024196 = 3162195^2 + 108014^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10011144242221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10011144242227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5005572121110 + 5005572121111.

It is an arithmetic number, because the mean of its divisors is an integer number (5005572121111).

Almost surely, 2^{10011144242221} is an apocalyptic number.

It is an amenable number.

10011144242221 is a deficient number, since it is larger than the sum of its proper divisors (1).

10011144242221 is an equidigital number, since it uses as much as digits as its factorization.

10011144242221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1024, while the sum is 25.

Adding to 10011144242221 its reverse (12224244111001), we get a palindrome (22235388353222).

The spelling of 10011144242221 in words is "ten trillion, eleven billion, one hundred forty-four million, two hundred forty-two thousand, two hundred twenty-one".