21222110002193 has 2 divisors, whose sum is σ = 21222110002194. Its totient is φ = 21222110002192.

The previous prime is 21222110002187. The next prime is 21222110002201. The reversal of 21222110002193 is 39120001122212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16436310605584 + 4785799396609 = 4054172^2 + 2187647^2 .

It is a cyclic number.

It is not a de Polignac number, because 21222110002193 - 2²⁶ = 21222042893329 is a prime.

It is not a weakly prime, because it can be changed into another prime (21222110002153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10611055001096 + 10611055001097.

It is an arithmetic number, because the mean of its divisors is an integer number (10611055001097).

Almost surely, 2^{21222110002193} is an apocalyptic number.

It is an amenable number.

21222110002193 is a deficient number, since it is larger than the sum of its proper divisors (1).

21222110002193 is an equidigital number, since it uses as much as digits as its factorization.

21222110002193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 26.

The spelling of 21222110002193 in words is "twenty-one trillion, two hundred twenty-two billion, one hundred ten million, two thousand, one hundred ninety-three".