11022212212111 has 2 divisors, whose sum is σ = 11022212212112. Its totient is φ = 11022212212110.

The previous prime is 11022212212051. The next prime is 11022212212163. The reversal of 11022212212111 is 11121221222011.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11022212212111 - 2⁹ = 11022212211599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11022212218111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5511106106055 + 5511106106056.

It is an arithmetic number, because the mean of its divisors is an integer number (5511106106056).

Almost surely, 2^{11022212212111} is an apocalyptic number.

11022212212111 is a deficient number, since it is larger than the sum of its proper divisors (1).

11022212212111 is an equidigital number, since it uses as much as digits as its factorization.

11022212212111 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 11022212212111 its reverse (11121221222011), we get a palindrome (22143433434122).

The spelling of 11022212212111 in words is "eleven trillion, twenty-two billion, two hundred twelve million, two hundred twelve thousand, one hundred eleven".