22200121121 has 4 divisors (see below), whose sum is σ = 22211295792. Its totient is φ = 22188946452.

The previous prime is 22200121087. The next prime is 22200121159. The reversal of 22200121121 is 12112100222.

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 22200121121 - 2⁶ = 22200121057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22200121096 and 22200121105.

It is not an unprimeable number, because it can be changed into a prime (22200121421) 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, 5584355 + ... + 5588328.

It is an arithmetic number, because the mean of its divisors is an integer number (5552823948).

Almost surely, 2^22200121121 is an apocalyptic number.

It is an amenable number.

22200121121 is a deficient number, since it is larger than the sum of its proper divisors (11174671).

22200121121 is a wasteful number, since it uses less digits than its factorization.

22200121121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11174670.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 22200121121 its reverse (12112100222), we get a palindrome (34312221343).

The spelling of 22200121121 in words is "twenty-two billion, two hundred million, one hundred twenty-one thousand, one hundred twenty-one".