11220211012111 has 2 divisors, whose sum is σ = 11220211012112. Its totient is φ = 11220211012110.

The previous prime is 11220211012099. The next prime is 11220211012123. The reversal of 11220211012111 is 11121011202211.

It is a balanced prime because it is at equal distance from previous prime (11220211012099) and next prime (11220211012123).

It is a cyclic number.

It is not a de Polignac number, because 11220211012111 - 2²⁷ = 11220076794383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11220211010111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5610105506055 + 5610105506056.

It is an arithmetic number, because the mean of its divisors is an integer number (5610105506056).

Almost surely, 2^{11220211012111} is an apocalyptic number.

11220211012111 is a deficient number, since it is larger than the sum of its proper divisors (1).

11220211012111 is an equidigital number, since it uses as much as digits as its factorization.

11220211012111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 11220211012111 its reverse (11121011202211), we get a palindrome (22341222214322).

The spelling of 11220211012111 in words is "eleven trillion, two hundred twenty billion, two hundred eleven million, twelve thousand, one hundred eleven".