2243121269 has 2 divisors, whose sum is σ = 2243121270. Its totient is φ = 2243121268.

The previous prime is 2243121233. The next prime is 2243121277. The reversal of 2243121269 is 9621213422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2240886244 + 2235025 = 47338^2 + 1495^2 .

It is a cyclic number.

It is not a de Polignac number, because 2243121269 - 2¹⁶ = 2243055733 is a prime.

It is a super-2 number, since 2×2243121269² = 10063186054880340722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2243121229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1121560634 + 1121560635.

It is an arithmetic number, because the mean of its divisors is an integer number (1121560635).

Almost surely, 2^2243121269 is an apocalyptic number.

It is an amenable number.

2243121269 is a deficient number, since it is larger than the sum of its proper divisors (1).

2243121269 is an equidigital number, since it uses as much as digits as its factorization.

2243121269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 32.

The square root of 2243121269 is about 47361.6012081517. The cubic root of 2243121269 is about 1309.0339728439.

The spelling of 2243121269 in words is "two billion, two hundred forty-three million, one hundred twenty-one thousand, two hundred sixty-nine".