22001110122111 has 4 divisors (see below), whose sum is σ = 29334813496152. Its totient is φ = 14667406748072.

The previous prime is 22001110122109. The next prime is 22001110122139. The reversal of 22001110122111 is 11122101110022.

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 22001110122111 - 2¹ = 22001110122109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22001110122011) 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, 3666851687016 + ... + 3666851687021.

It is an arithmetic number, because the mean of its divisors is an integer number (7333703374038).

Almost surely, 2^{22001110122111} is an apocalyptic number.

22001110122111 is a deficient number, since it is larger than the sum of its proper divisors (7333703374041).

22001110122111 is an equidigital number, since it uses as much as digits as its factorization.

22001110122111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7333703374040.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 22001110122111 its reverse (11122101110022), we get a palindrome (33123211232133).

The spelling of 22001110122111 in words is "twenty-two trillion, one billion, one hundred ten million, one hundred twenty-two thousand, one hundred eleven".