121212299 has 8 divisors (see below), whose sum is σ = 131215392. Its totient is φ = 111306240.

The previous prime is 121212281. The next prime is 121212317. The reversal of 121212299 is 992212121.

It is an interprime number because it is at equal distance from previous prime (121212281) and next prime (121212317).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121212299 - 2¹⁶ = 121146763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121212209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21647 + ... + 26664.

It is an arithmetic number, because the mean of its divisors is an integer number (16401924).

Almost surely, 2^121212299 is an apocalyptic number.

121212299 is a deficient number, since it is larger than the sum of its proper divisors (10003093).

121212299 is a wasteful number, since it uses less digits than its factorization.

121212299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48517.

The product of its digits is 1296, while the sum is 29.

The square root of 121212299 is about 11009.6457254537. The cubic root of 121212299 is about 494.8978451235.

The spelling of 121212299 in words is "one hundred twenty-one million, two hundred twelve thousand, two hundred ninety-nine".