1222221110269 has 2 divisors, whose sum is σ = 1222221110270. Its totient is φ = 1222221110268.

The previous prime is 1222221110203. The next prime is 1222221110339. The reversal of 1222221110269 is 9620111222221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1028475883044 + 193745227225 = 1014138^2 + 440165^2 .

It is an emirp because it is prime and its reverse (9620111222221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1222221110269 - 2¹¹ = 1222221108221 is a prime.

It is a super-2 number, since 2×1222221110269² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1222221110269.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1222221180269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611110555134 + 611110555135.

It is an arithmetic number, because the mean of its divisors is an integer number (611110555135).

Almost surely, 2^{1222221110269} is an apocalyptic number.

It is an amenable number.

1222221110269 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222221110269 is an equidigital number, since it uses as much as digits as its factorization.

1222221110269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 31.

The spelling of 1222221110269 in words is "one trillion, two hundred twenty-two billion, two hundred twenty-one million, one hundred ten thousand, two hundred sixty-nine".