22000321121 has 2 divisors, whose sum is σ = 22000321122. Its totient is φ = 22000321120.

The previous prime is 22000321117. The next prime is 22000321171. The reversal of 22000321121 is 12112300022.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20688794896 + 1311526225 = 143836^2 + 36215^2 .

It is a cyclic number.

It is not a de Polignac number, because 22000321121 - 2² = 22000321117 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22000321096 and 22000321105.

It is not a weakly prime, because it can be changed into another prime (22000321111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11000160560 + 11000160561.

It is an arithmetic number, because the mean of its divisors is an integer number (11000160561).

Almost surely, 2^22000321121 is an apocalyptic number.

It is an amenable number.

22000321121 is a deficient number, since it is larger than the sum of its proper divisors (1).

22000321121 is an equidigital number, since it uses as much as digits as its factorization.

22000321121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 22000321121 its reverse (12112300022), we get a palindrome (34112621143).

The spelling of 22000321121 in words is "twenty-two billion, three hundred twenty-one thousand, one hundred twenty-one".