121212430099 has 8 divisors (see below), whose sum is σ = 130764132000. Its totient is φ = 111929790336.

The previous prime is 121212430081. The next prime is 121212430103. The reversal of 121212430099 is 990034212121.

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 121212430099 - 2⁹ = 121212429587 is a prime.

It is a super-2 number, since 2×121212430099² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121212430399) 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 in 7 ways as a sum of consecutive naturals, for example, 67264599 + ... + 67266400.

It is an arithmetic number, because the mean of its divisors is an integer number (16345516500).

Almost surely, 2^121212430099 is an apocalyptic number.

121212430099 is a deficient number, since it is larger than the sum of its proper divisors (9551701901).

121212430099 is a wasteful number, since it uses less digits than its factorization.

121212430099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134531069.

The product of its (nonzero) digits is 7776, while the sum is 34.

The spelling of 121212430099 in words is "one hundred twenty-one billion, two hundred twelve million, four hundred thirty thousand, ninety-nine".