121101229 has 2 divisors, whose sum is σ = 121101230. Its totient is φ = 121101228.

The previous prime is 121101203. The next prime is 121101257. The reversal of 121101229 is 922101121.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77475204 + 43626025 = 8802^2 + 6605^2 .

It is a cyclic number.

It is not a de Polignac number, because 121101229 - 2¹⁵ = 121068461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121101329) 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, 60550614 + 60550615.

It is an arithmetic number, because the mean of its divisors is an integer number (60550615).

Almost surely, 2^121101229 is an apocalyptic number.

It is an amenable number.

121101229 is a deficient number, since it is larger than the sum of its proper divisors (1).

121101229 is an equidigital number, since it uses as much as digits as its factorization.

121101229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 121101229 is about 11004.6003562147. The cubic root of 121101229 is about 494.7466363152.

The spelling of 121101229 in words is "one hundred twenty-one million, one hundred one thousand, two hundred twenty-nine".