22001111211 has 8 divisors (see below), whose sum is σ = 29355348880. Its totient is φ = 14657140512.

The previous prime is 22001111201. The next prime is 22001111243. The reversal of 22001111211 is 11211110022.

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

It is a de Polignac number, because none of the positive numbers 2^k-22001111211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22001111201) 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, 2561740 + ... + 2570313.

It is an arithmetic number, because the mean of its divisors is an integer number (3669418610).

Almost surely, 2^22001111211 is an apocalyptic number.

22001111211 is a deficient number, since it is larger than the sum of its proper divisors (7354237669).

22001111211 is a wasteful number, since it uses less digits than its factorization.

22001111211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5133485.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 22001111211 its reverse (11211110022), we get a palindrome (33212221233).

The spelling of 22001111211 in words is "twenty-two billion, one million, one hundred eleven thousand, two hundred eleven".