22002200121121 has 32 divisors (see below), whose sum is σ = 24574398990336. Its totient is φ = 19531650432000.

The previous prime is 22002200121103. The next prime is 22002200121149. The reversal of 22002200121121 is 12112100220022.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 22002200121121 - 2⁷ = 22002200120993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22002200121095 and 22002200121104.

It is not an unprimeable number, because it can be changed into a prime (22002200121151) 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 31 ways as a sum of consecutive naturals, for example, 33894876 + ... + 34537906.

It is an arithmetic number, because the mean of its divisors is an integer number (767949968448).

Almost surely, 2^{22002200121121} is an apocalyptic number.

It is an amenable number.

22002200121121 is a deficient number, since it is larger than the sum of its proper divisors (2572198869215).

22002200121121 is a wasteful number, since it uses less digits than its factorization.

22002200121121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643533.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22002200121121 its reverse (12112100220022), we get a palindrome (34114300341143).

The spelling of 22002200121121 in words is "twenty-two trillion, two billion, two hundred million, one hundred twenty-one thousand, one hundred twenty-one".