22110122221111 has 4 divisors (see below), whose sum is σ = 22155153020424. Its totient is φ = 22065091421800.

The previous prime is 22110122221093. The next prime is 22110122221133. The reversal of 22110122221111 is 11112222101122.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22110122221111 - 2¹¹ = 22110122219063 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 (22110122221181) 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, 22515398920 + ... + 22515399901.

It is an arithmetic number, because the mean of its divisors is an integer number (5538788255106).

Almost surely, 2^{22110122221111} is an apocalyptic number.

22110122221111 is a deficient number, since it is larger than the sum of its proper divisors (45030799313).

22110122221111 is an equidigital number, since it uses as much as digits as its factorization.

22110122221111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45030799312.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 22110122221111 its reverse (11112222101122), we get a palindrome (33222344322233).

The spelling of 22110122221111 in words is "twenty-two trillion, one hundred ten billion, one hundred twenty-two million, two hundred twenty-one thousand, one hundred eleven".