22111111111001 has 8 divisors (see below), whose sum is σ = 24121697654208. Its totient is φ = 20100605490000.

The previous prime is 22111111110967. The next prime is 22111111111003. The reversal of 22111111111001 is 10011111111122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22111111111001 - 2²⁶ = 22111044002137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22111111111003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19658525 + ... + 20752826.

It is an arithmetic number, because the mean of its divisors is an integer number (3015212206776).

Almost surely, 2^{22111111111001} is an apocalyptic number.

It is an amenable number.

22111111111001 is a deficient number, since it is larger than the sum of its proper divisors (2010586543207).

22111111111001 is a wasteful number, since it uses less digits than its factorization.

22111111111001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40461103.

The product of its (nonzero) digits is 4, while the sum is 14.

Adding to 22111111111001 its reverse (10011111111122), we get a palindrome (32122222222123).

The spelling of 22111111111001 in words is "twenty-two trillion, one hundred eleven billion, one hundred eleven million, one hundred eleven thousand, one".