11101021220111 has 2 divisors, whose sum is σ = 11101021220112. Its totient is φ = 11101021220110.

The previous prime is 11101021220099. The next prime is 11101021220119. The reversal of 11101021220111 is 11102212010111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11101021220111 - 2³⁰ = 11099947478287 is a prime.

It is a super-2 number, since 2×11101021220111² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11101021220119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5550510610055 + 5550510610056.

It is an arithmetic number, because the mean of its divisors is an integer number (5550510610056).

Almost surely, 2^{11101021220111} is an apocalyptic number.

11101021220111 is a deficient number, since it is larger than the sum of its proper divisors (1).

11101021220111 is an equidigital number, since it uses as much as digits as its factorization.

11101021220111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 11101021220111 its reverse (11102212010111), we get a palindrome (22203233230222).

The spelling of 11101021220111 in words is "eleven trillion, one hundred one billion, twenty-one million, two hundred twenty thousand, one hundred eleven".