22011222202111 has 4 divisors (see below), whose sum is σ = 22011232406800. Its totient is φ = 22011211997424.

The previous prime is 22011222202027. The next prime is 22011222202117. The reversal of 22011222202111 is 11120222211022.

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 22011222202111 - 2²⁹ = 22010685331199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22011222202117) 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, 457326 + ... + 6650683.

It is an arithmetic number, because the mean of its divisors is an integer number (5502808101700).

Almost surely, 2^{22011222202111} is an apocalyptic number.

22011222202111 is a deficient number, since it is larger than the sum of its proper divisors (10204689).

22011222202111 is an equidigital number, since it uses as much as digits as its factorization.

22011222202111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10204688.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 22011222202111 its reverse (11120222211022), we get a palindrome (33131444413133).

The spelling of 22011222202111 in words is "twenty-two trillion, eleven billion, two hundred twenty-two million, two hundred two thousand, one hundred eleven".