121110221010099 has 4 divisors (see below), whose sum is σ = 161480294680136. Its totient is φ = 80740147340064.

The previous prime is 121110221010089. The next prime is 121110221010137. The reversal of 121110221010099 is 990010122011121.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 121110221010099 - 2⁴ = 121110221010083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121110221010089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20185036835014 + ... + 20185036835019.

It is an arithmetic number, because the mean of its divisors is an integer number (40370073670034).

Almost surely, 2^{121110221010099} is an apocalyptic number.

121110221010099 is a deficient number, since it is larger than the sum of its proper divisors (40370073670037).

121110221010099 is an equidigital number, since it uses as much as digits as its factorization.

121110221010099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40370073670036.

The product of its (nonzero) digits is 648, while the sum is 30.

The spelling of 121110221010099 in words is "one hundred twenty-one trillion, one hundred ten billion, two hundred twenty-one million, ten thousand, ninety-nine".