210120122101099 has 4 divisors (see below), whose sum is σ = 240137282401264. Its totient is φ = 180102961800936.

The previous prime is 210120122101037. The next prime is 210120122101151. The reversal of 210120122101099 is 990101221021012.

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 210120122101099 - 2¹⁷ = 210120121970027 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 210120122101099.

It is not an unprimeable number, because it can be changed into a prime (210120122101699) 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, 15008580150072 + ... + 15008580150085.

It is an arithmetic number, because the mean of its divisors is an integer number (60034320600316).

Almost surely, 2^{210120122101099} is an apocalyptic number.

210120122101099 is a deficient number, since it is larger than the sum of its proper divisors (30017160300165).

210120122101099 is an equidigital number, since it uses as much as digits as its factorization.

210120122101099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30017160300164.

The product of its (nonzero) digits is 1296, while the sum is 31.

The spelling of 210120122101099 in words is "two hundred ten trillion, one hundred twenty billion, one hundred twenty-two million, one hundred one thousand, ninety-nine".