202111001121 has 16 divisors (see below), whose sum is σ = 272170892160. Its totient is φ = 133396099200.

The previous prime is 202111001111. The next prime is 202111001129. The reversal of 202111001121 is 121100111202.

It is not a de Polignac number, because 202111001121 - 2¹¹ = 202110999073 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 202111001097 and 202111001106.

It is not an unprimeable number, because it can be changed into a prime (202111001129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6507796 + ... + 6538778.

It is an arithmetic number, because the mean of its divisors is an integer number (17010680760).

Almost surely, 2^202111001121 is an apocalyptic number.

It is an amenable number.

202111001121 is a deficient number, since it is larger than the sum of its proper divisors (70059891039).

202111001121 is a wasteful number, since it uses less digits than its factorization.

202111001121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52616.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 202111001121 its reverse (121100111202), we get a palindrome (323211112323).

The spelling of 202111001121 in words is "two hundred two billion, one hundred eleven million, one thousand, one hundred twenty-one".