212268269 has 2 divisors, whose sum is σ = 212268270. Its totient is φ = 212268268.

The previous prime is 212268187. The next prime is 212268283. The reversal of 212268269 is 962862212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 135443044 + 76825225 = 11638^2 + 8765^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212268269 is a prime.

It is a super-2 number, since 2×212268269² = 90115636048512722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212268289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106134134 + 106134135.

It is an arithmetic number, because the mean of its divisors is an integer number (106134135).

Almost surely, 2^212268269 is an apocalyptic number.

It is an amenable number.

212268269 is a deficient number, since it is larger than the sum of its proper divisors (1).

212268269 is an equidigital number, since it uses as much as digits as its factorization.

212268269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 38.

The square root of 212268269 is about 14569.4292612992. The cubic root of 212268269 is about 596.5246017311.

The spelling of 212268269 in words is "two hundred twelve million, two hundred sixty-eight thousand, two hundred sixty-nine".