22210000210121 has 2 divisors, whose sum is σ = 22210000210122. Its totient is φ = 22210000210120.

The previous prime is 22210000210109. The next prime is 22210000210201. The reversal of 22210000210121 is 12101200001222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14291764398025 + 7918235812096 = 3780445^2 + 2813936^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22210000210121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22210000210096 and 22210000210105.

It is not a weakly prime, because it can be changed into another prime (22210000210621) 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 as a sum of consecutive naturals, namely, 11105000105060 + 11105000105061.

It is an arithmetic number, because the mean of its divisors is an integer number (11105000105061).

Almost surely, 2^{22210000210121} is an apocalyptic number.

It is an amenable number.

22210000210121 is a deficient number, since it is larger than the sum of its proper divisors (1).

22210000210121 is an equidigital number, since it uses as much as digits as its factorization.

22210000210121 is an odious number, because the sum of its binary digits is odd.

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

Adding to 22210000210121 its reverse (12101200001222), we get a palindrome (34311200211343).

The spelling of 22210000210121 in words is "twenty-two trillion, two hundred ten billion, two hundred ten thousand, one hundred twenty-one".