11112010221121 has 2 divisors, whose sum is σ = 11112010221122. Its totient is φ = 11112010221120.

The previous prime is 11112010221107. The next prime is 11112010221197. The reversal of 11112010221121 is 12112201021111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10710637289521 + 401372931600 = 3272711^2 + 633540^2 .

It is a cyclic number.

It is not a de Polignac number, because 11112010221121 - 2²⁹ = 11111473350209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11112010221095 and 11112010221104.

It is not a weakly prime, because it can be changed into another prime (11112010221821) 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, 5556005110560 + 5556005110561.

It is an arithmetic number, because the mean of its divisors is an integer number (5556005110561).

Almost surely, 2^{11112010221121} is an apocalyptic number.

It is an amenable number.

11112010221121 is a deficient number, since it is larger than the sum of its proper divisors (1).

11112010221121 is an equidigital number, since it uses as much as digits as its factorization.

11112010221121 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 11112010221121 its reverse (12112201021111), we get a palindrome (23224211242232).

The spelling of 11112010221121 in words is "eleven trillion, one hundred twelve billion, ten million, two hundred twenty-one thousand, one hundred twenty-one".