201233120211121 has 4 divisors (see below), whose sum is σ = 201238277561200. Its totient is φ = 201227962861044.

The previous prime is 201233120211043. The next prime is 201233120211127. The reversal of 201233120211121 is 121112021332102.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 201233120211121 - 2¹¹ = 201233120209073 is a prime.

It is a super-2 number, since 2×201233120211121² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201233120211092 and 201233120211101.

It is not an unprimeable number, because it can be changed into a prime (201233120211127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2578616511 + ... + 2578694548.

It is an arithmetic number, because the mean of its divisors is an integer number (50309569390300).

Almost surely, 2^{201233120211121} is an apocalyptic number.

It is an amenable number.

201233120211121 is a deficient number, since it is larger than the sum of its proper divisors (5157350079).

201233120211121 is an equidigital number, since it uses as much as digits as its factorization.

201233120211121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5157350078.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 201233120211121 its reverse (121112021332102), we get a palindrome (322345141543223).

The spelling of 201233120211121 in words is "two hundred one trillion, two hundred thirty-three billion, one hundred twenty million, two hundred eleven thousand, one hundred twenty-one".