2221232991269 has 2 divisors, whose sum is σ = 2221232991270. Its totient is φ = 2221232991268.

The previous prime is 2221232991227. The next prime is 2221232991287. The reversal of 2221232991269 is 9621992321222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1319040765025 + 902192226244 = 1148495^2 + 949838^2 .

It is a cyclic number.

It is not a de Polignac number, because 2221232991269 - 2²⁴ = 2221216214053 is a prime.

It is a super-2 number, since 2×2221232991269² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2221232991169) 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, 1110616495634 + 1110616495635.

It is an arithmetic number, because the mean of its divisors is an integer number (1110616495635).

Almost surely, 2^{2221232991269} is an apocalyptic number.

It is an amenable number.

2221232991269 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221232991269 is an equidigital number, since it uses as much as digits as its factorization.

2221232991269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 839808, while the sum is 50.

The spelling of 2221232991269 in words is "two trillion, two hundred twenty-one billion, two hundred thirty-two million, nine hundred ninety-one thousand, two hundred sixty-nine".