11122001022111 has 16 divisors (see below), whose sum is σ = 16980340485888. Its totient is φ = 6343230628800.

The previous prime is 11122001021993. The next prime is 11122001022127. The reversal of 11122001022111 is 11122010022111.

It is a happy number.

It is not a de Polignac number, because 11122001022111 - 2¹⁵ = 11122000989343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11122001022161) 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, 508260745 + ... + 508282626.

It is an arithmetic number, because the mean of its divisors is an integer number (1061271280368).

Almost surely, 2^{11122001022111} is an apocalyptic number.

11122001022111 is a deficient number, since it is larger than the sum of its proper divisors (5858339463777).

11122001022111 is a wasteful number, since it uses less digits than its factorization.

11122001022111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1016543902.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11122001022111 its reverse (11122010022111), we get a palindrome (22244011044222).

Subtracting 11122001022111 from its reverse (11122010022111), we obtain a square (9000000 = 3000²).

The spelling of 11122001022111 in words is "eleven trillion, one hundred twenty-two billion, one million, twenty-two thousand, one hundred eleven".