22210020222121 has 2 divisors, whose sum is σ = 22210020222122. Its totient is φ = 22210020222120.

The previous prime is 22210020222097. The next prime is 22210020222167. The reversal of 22210020222121 is 12122202001222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20412640261225 + 1797379960896 = 4518035^2 + 1340664^2 .

It is a cyclic number.

It is not a de Polignac number, because 22210020222121 - 2³¹ = 22207872738473 is a prime.

It is not a weakly prime, because it can be changed into another prime (22210020262121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11105010111060 + 11105010111061.

It is an arithmetic number, because the mean of its divisors is an integer number (11105010111061).

Almost surely, 2^{22210020222121} is an apocalyptic number.

It is an amenable number.

22210020222121 is a deficient number, since it is larger than the sum of its proper divisors (1).

22210020222121 is an equidigital number, since it uses as much as digits as its factorization.

22210020222121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 22210020222121 its reverse (12122202001222), we get a palindrome (34332222223343).

The spelling of 22210020222121 in words is "twenty-two trillion, two hundred ten billion, twenty million, two hundred twenty-two thousand, one hundred twenty-one".