121101112021099 has 8 divisors (see below), whose sum is σ = 140466961491968. Its totient is φ = 102251685202920.

The previous prime is 121101112021007. The next prime is 121101112021117. The reversal of 121101112021099 is 990120211101121.

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 121101112021099 - 2²¹ = 121101109923947 is a prime.

It is a super-4 number, since 4×121101112021099⁴ (a number of 57 digits) contains 4444 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121101112021099.

It is not an unprimeable number, because it can be changed into a prime (121101112021499) 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, 129105662667 + ... + 129105663604.

It is an arithmetic number, because the mean of its divisors is an integer number (17558370186496).

Almost surely, 2^{121101112021099} is an apocalyptic number.

121101112021099 is a deficient number, since it is larger than the sum of its proper divisors (19365849470869).

121101112021099 is an equidigital number, since it uses as much as digits as its factorization.

121101112021099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258211326345.

The product of its (nonzero) digits is 648, while the sum is 31.

The spelling of 121101112021099 in words is "one hundred twenty-one trillion, one hundred one billion, one hundred twelve million, twenty-one thousand, ninety-nine".