22111110011001 has 16 divisors (see below), whose sum is σ = 32165294378688. Its totient is φ = 13399139476800.

The previous prime is 22111110010999. The next prime is 22111110011027. The reversal of 22111110011001 is 10011001111122.

It is not a de Polignac number, because 22111110011001 - 2¹ = 22111110010999 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22111110011101) 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, 38038606 + ... + 38615511.

It is an arithmetic number, because the mean of its divisors is an integer number (2010330898668).

Almost surely, 2^{22111110011001} is an apocalyptic number.

It is an amenable number.

22111110011001 is a deficient number, since it is larger than the sum of its proper divisors (10054184367687).

22111110011001 is a wasteful number, since it uses less digits than its factorization.

22111110011001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76662872.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 22111110011001 its reverse (10011001111122), we get a palindrome (32122111122123).

The spelling of 22111110011001 in words is "twenty-two trillion, one hundred eleven billion, one hundred ten million, eleven thousand, one".