22001101211 has 4 divisors (see below), whose sum is σ = 22001408400. Its totient is φ = 22000794024.

The previous prime is 22001101139. The next prime is 22001101217. The reversal of 22001101211 is 11210110022.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 22001101211 - 2³⁴ = 4821232027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22001101192 and 22001101201.

It is not an unprimeable number, because it can be changed into a prime (22001101217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16985 + ... + 210453.

It is an arithmetic number, because the mean of its divisors is an integer number (5500352100).

Almost surely, 2^22001101211 is an apocalyptic number.

22001101211 is a deficient number, since it is larger than the sum of its proper divisors (307189).

22001101211 is a wasteful number, since it uses less digits than its factorization.

22001101211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307188.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 22001101211 its reverse (11210110022), we get a palindrome (33211211233).

The spelling of 22001101211 in words is "twenty-two billion, one million, one hundred one thousand, two hundred eleven".