121002212020099 has 4 divisors (see below), whose sum is σ = 121002237678520. Its totient is φ = 121002186361680.

The previous prime is 121002212020091. The next prime is 121002212020147. The reversal of 121002212020099 is 990020212200121.

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

It is a cyclic number.

It is not a de Polignac number, because 121002212020099 - 2³ = 121002212020091 is a prime.

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 121002212020099.

It is not an unprimeable number, because it can be changed into a prime (121002212020091) 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, 3488397 + ... + 15942814.

It is an arithmetic number, because the mean of its divisors is an integer number (30250559419630).

Almost surely, 2^{121002212020099} is an apocalyptic number.

121002212020099 is a deficient number, since it is larger than the sum of its proper divisors (25658421).

121002212020099 is an equidigital number, since it uses as much as digits as its factorization.

121002212020099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25658420.

The product of its (nonzero) digits is 2592, while the sum is 31.

The spelling of 121002212020099 in words is "one hundred twenty-one trillion, two billion, two hundred twelve million, twenty thousand, ninety-nine".