22110222120121 has 4 divisors (see below), whose sum is σ = 23273918021200. Its totient is φ = 20946526219044.

The previous prime is 22110222120109. The next prime is 22110222120137. The reversal of 22110222120121 is 12102122201122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22110222120121 - 2¹⁷ = 22110221989049 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 1163695901059 = 22110222120121 / (2 + 2 + 1 + 1 + 0 + 2 + 2 + 2 + 1 + 2 + 0 + 1 + 2 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22110222121121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 581847950511 + ... + 581847950548.

It is an arithmetic number, because the mean of its divisors is an integer number (5818479505300).

Almost surely, 2^{22110222120121} is an apocalyptic number.

It is an amenable number.

22110222120121 is a deficient number, since it is larger than the sum of its proper divisors (1163695901079).

22110222120121 is a wasteful number, since it uses less digits than its factorization.

22110222120121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1163695901078.

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

Adding to 22110222120121 its reverse (12102122201122), we get a palindrome (34212344321243).

The spelling of 22110222120121 in words is "twenty-two trillion, one hundred ten billion, two hundred twenty-two million, one hundred twenty thousand, one hundred twenty-one".