2221210000169 has 2 divisors, whose sum is σ = 2221210000170. Its totient is φ = 2221210000168.

The previous prime is 2221210000153. The next prime is 2221210000171. The reversal of 2221210000169 is 9610000121222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1754003574544 + 467206425625 = 1324388^2 + 683525^2 .

It is a cyclic number.

It is not a de Polignac number, because 2221210000169 - 2⁴ = 2221210000153 is a prime.

It is a super-2 number, since 2×2221210000169² (a number of 25 digits) contains 22 as substring.

Together with 2221210000171, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2221210000129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110605000084 + 1110605000085.

It is an arithmetic number, because the mean of its divisors is an integer number (1110605000085).

Almost surely, 2^{2221210000169} is an apocalyptic number.

It is an amenable number.

2221210000169 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221210000169 is an equidigital number, since it uses as much as digits as its factorization.

2221210000169 is an evil number, because the sum of its binary digits is even.

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

The spelling of 2221210000169 in words is "two trillion, two hundred twenty-one billion, two hundred ten million, one hundred sixty-nine", and thus it is an aban number.