22011112111121 has 8 divisors (see below), whose sum is σ = 25567942874304. Its totient is φ = 18557377891920.

The previous prime is 22011112111117. The next prime is 22011112111253. The reversal of 22011112111121 is 12111121111022.

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

It is not a de Polignac number, because 22011112111121 - 2² = 22011112111117 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22011112111121.

It is not an unprimeable number, because it can be changed into a prime (22011112311121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25774135535 + ... + 25774136388.

It is an arithmetic number, because the mean of its divisors is an integer number (3195992859288).

Almost surely, 2^{22011112111121} is an apocalyptic number.

It is an amenable number.

22011112111121 is a deficient number, since it is larger than the sum of its proper divisors (3556830763183).

22011112111121 is an equidigital number, since it uses as much as digits as its factorization.

22011112111121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51548271991.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 22011112111121 its reverse (12111121111022), we get a palindrome (34122233222143).

The spelling of 22011112111121 in words is "twenty-two trillion, eleven billion, one hundred twelve million, one hundred eleven thousand, one hundred twenty-one".