11122222211101 has 2 divisors, whose sum is σ = 11122222211102. Its totient is φ = 11122222211100.

The previous prime is 11122222211081. The next prime is 11122222211117. The reversal of 11122222211101 is 10111222222111.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10955636604900 + 166585606201 = 3309930^2 + 408149^2 .

It is a cyclic number.

It is not a de Polignac number, because 11122222211101 - 2¹¹ = 11122222209053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11122222241101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5561111105550 + 5561111105551.

It is an arithmetic number, because the mean of its divisors is an integer number (5561111105551).

Almost surely, 2^{11122222211101} is an apocalyptic number.

It is an amenable number.

11122222211101 is a deficient number, since it is larger than the sum of its proper divisors (1).

11122222211101 is an equidigital number, since it uses as much as digits as its factorization.

11122222211101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 11122222211101 its reverse (10111222222111), we get a palindrome (21233444433212).

The spelling of 11122222211101 in words is "eleven trillion, one hundred twenty-two billion, two hundred twenty-two million, two hundred eleven thousand, one hundred one".