21222130000297 has 2 divisors, whose sum is σ = 21222130000298. Its totient is φ = 21222130000296.

The previous prime is 21222130000277. The next prime is 21222130000321. The reversal of 21222130000297 is 79200003122212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15081269338521 + 6140860661776 = 3883461^2 + 2478076^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21222130000297 is a prime.

It is not a weakly prime, because it can be changed into another prime (21222130000277) 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, 10611065000148 + 10611065000149.

It is an arithmetic number, because the mean of its divisors is an integer number (10611065000149).

Almost surely, 2^{21222130000297} is an apocalyptic number.

It is an amenable number.

21222130000297 is a deficient number, since it is larger than the sum of its proper divisors (1).

21222130000297 is an equidigital number, since it uses as much as digits as its factorization.

21222130000297 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 31.

The spelling of 21222130000297 in words is "twenty-one trillion, two hundred twenty-two billion, one hundred thirty million, two hundred ninety-seven", and thus it is an aban number.