22110100121 has 4 divisors (see below), whose sum is σ = 22110421200. Its totient is φ = 22109779044.

The previous prime is 22110100109. The next prime is 22110100151. The reversal of 22110100121 is 12100101122.

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, 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 22110100121 - 2³⁴ = 4930230937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22110100151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10511 + ... + 210548.

It is an arithmetic number, because the mean of its divisors is an integer number (5527605300).

Almost surely, 2^22110100121 is an apocalyptic number.

It is an amenable number.

22110100121 is a deficient number, since it is larger than the sum of its proper divisors (321079).

22110100121 is a wasteful number, since it uses less digits than its factorization.

22110100121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321078.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 22110100121 its reverse (12100101122), we get a palindrome (34210201243).

The spelling of 22110100121 in words is "twenty-two billion, one hundred ten million, one hundred thousand, one hundred twenty-one".