202111201121 has 4 divisors (see below), whose sum is σ = 210898644672. Its totient is φ = 193323757572.

The previous prime is 202111201091. The next prime is 202111201151. The reversal of 202111201121 is 121102111202.

202111201121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (202111201091) and next prime (202111201151).

It is not a de Polignac number, because 202111201121 - 2¹⁰ = 202111200097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202111201096 and 202111201105.

It is not an unprimeable number, because it can be changed into a prime (202111201151) 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 3 ways as a sum of consecutive naturals, for example, 4393721741 + ... + 4393721786.

It is an arithmetic number, because the mean of its divisors is an integer number (52724661168).

Almost surely, 2^202111201121 is an apocalyptic number.

It is an amenable number.

202111201121 is a deficient number, since it is larger than the sum of its proper divisors (8787443551).

202111201121 is an equidigital number, since it uses as much as digits as its factorization.

202111201121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8787443550.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 202111201121 its reverse (121102111202), we get a palindrome (323213312323).

The spelling of 202111201121 in words is "two hundred two billion, one hundred eleven million, two hundred one thousand, one hundred twenty-one".