11112221010111 has 16 divisors (see below), whose sum is σ = 16077811263360. Its totient is φ = 6786089163360.

The previous prime is 11112221010067. The next prime is 11112221010113. The reversal of 11112221010111 is 11101012221111.

It is not a de Polignac number, because 11112221010111 - 2¹⁸ = 11112220747967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11112221010113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1087509181 + ... + 1087519398.

It is an arithmetic number, because the mean of its divisors is an integer number (1004863203960).

Almost surely, 2^{11112221010111} is an apocalyptic number.

11112221010111 is a deficient number, since it is larger than the sum of its proper divisors (4965590253249).

11112221010111 is a wasteful number, since it uses less digits than its factorization.

11112221010111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2175028726.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 11112221010111 its reverse (11101012221111), we get a palindrome (22213233231222).

The spelling of 11112221010111 in words is "eleven trillion, one hundred twelve billion, two hundred twenty-one million, ten thousand, one hundred eleven".