11111444222101 has 2 divisors, whose sum is σ = 11111444222102. Its totient is φ = 11111444222100.

The previous prime is 11111444222083. The next prime is 11111444222113. The reversal of 11111444222101 is 10122244411111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6034416815025 + 5077027407076 = 2456505^2 + 2253226^2 .

It is a cyclic number.

It is not a de Polignac number, because 11111444222101 - 2⁹ = 11111444221589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11111444222191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555722111050 + 5555722111051.

It is an arithmetic number, because the mean of its divisors is an integer number (5555722111051).

Almost surely, 2^{11111444222101} is an apocalyptic number.

It is an amenable number.

11111444222101 is a deficient number, since it is larger than the sum of its proper divisors (1).

11111444222101 is an equidigital number, since it uses as much as digits as its factorization.

11111444222101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 512, while the sum is 25.

Adding to 11111444222101 its reverse (10122244411111), we get a palindrome (21233688633212).

The spelling of 11111444222101 in words is "eleven trillion, one hundred eleven billion, four hundred forty-four million, two hundred twenty-two thousand, one hundred one".