100121269 has 2 divisors, whose sum is σ = 100121270. Its totient is φ = 100121268.

The previous prime is 100121267. The next prime is 100121299. The reversal of 100121269 is 962121001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53363025 + 46758244 = 7305^2 + 6838^2 .

It is a cyclic number.

It is not a de Polignac number, because 100121269 - 2¹ = 100121267 is a prime.

It is a super-2 number, since 2×100121269² = 20048537012340722, which contains 22 as substring.

Together with 100121267, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100121267) 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, 50060634 + 50060635.

It is an arithmetic number, because the mean of its divisors is an integer number (50060635).

Almost surely, 2^100121269 is an apocalyptic number.

It is an amenable number.

100121269 is a deficient number, since it is larger than the sum of its proper divisors (1).

100121269 is an equidigital number, since it uses as much as digits as its factorization.

100121269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 100121269 is about 10006.0616128425. The cubic root of 100121269 is about 464.3464345133.

The spelling of 100121269 in words is "one hundred million, one hundred twenty-one thousand, two hundred sixty-nine".