11221010012111 has 2 divisors, whose sum is σ = 11221010012112. Its totient is φ = 11221010012110.

The previous prime is 11221010012027. The next prime is 11221010012171. The reversal of 11221010012111 is 11121001012211.

11221010012111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11221010012111 - 2¹⁰ = 11221010011087 is a prime.

It is a super-2 number, since 2×11221010012111² (a number of 27 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11221010012171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5610505006055 + 5610505006056.

It is an arithmetic number, because the mean of its divisors is an integer number (5610505006056).

Almost surely, 2^{11221010012111} is an apocalyptic number.

11221010012111 is a deficient number, since it is larger than the sum of its proper divisors (1).

11221010012111 is an equidigital number, since it uses as much as digits as its factorization.

11221010012111 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 11221010012111 its reverse (11121001012211), we get a palindrome (22342011024322).

It can be divided in two parts, 112210100 and 12111, that added together give a palindrome (112222211).

The spelling of 11221010012111 in words is "eleven trillion, two hundred twenty-one billion, ten million, twelve thousand, one hundred eleven".