121111030099 has 8 divisors (see below), whose sum is σ = 122780357280. Its totient is φ = 119448559296.

The previous prime is 121111030039. The next prime is 121111030127. The reversal of 121111030099 is 990030111121.

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 121111030099 - 2¹⁵ = 121110997331 is a prime.

It is a super-2 number, since 2×121111030099² (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 (121111030039) 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, 1678519 + ... + 1749184.

It is an arithmetic number, because the mean of its divisors is an integer number (15347544660).

Almost surely, 2^121111030099 is an apocalyptic number.

121111030099 is a deficient number, since it is larger than the sum of its proper divisors (1669327181).

121111030099 is an equidigital number, since it uses as much as digits as its factorization.

121111030099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3428189.

The product of its (nonzero) digits is 486, while the sum is 28.

The spelling of 121111030099 in words is "one hundred twenty-one billion, one hundred eleven million, thirty thousand, ninety-nine".