11101222021213 has 2 divisors, whose sum is σ = 11101222021214. Its totient is φ = 11101222021212.

The previous prime is 11101222021193. The next prime is 11101222021229. The reversal of 11101222021213 is 31212022210111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10772981257284 + 328240763929 = 3282222^2 + 572923^2 .

It is a cyclic number.

It is not a de Polignac number, because 11101222021213 - 2⁵ = 11101222021181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11101222022213) 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, 5550611010606 + 5550611010607.

It is an arithmetic number, because the mean of its divisors is an integer number (5550611010607).

Almost surely, 2^{11101222021213} is an apocalyptic number.

It is an amenable number.

11101222021213 is a deficient number, since it is larger than the sum of its proper divisors (1).

11101222021213 is an equidigital number, since it uses as much as digits as its factorization.

11101222021213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 11101222021213 its reverse (31212022210111), we get a palindrome (42313244231324).

The spelling of 11101222021213 in words is "eleven trillion, one hundred one billion, two hundred twenty-two million, twenty-one thousand, two hundred thirteen".