201233120121 has 32 divisors (see below), whose sum is σ = 333157587840. Its totient is φ = 118984838400.

The previous prime is 201233120113. The next prime is 201233120141. The reversal of 201233120121 is 121021332102.

It is not a de Polignac number, because 201233120121 - 2³ = 201233120113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201233120094 and 201233120103.

It is not an unprimeable number, because it can be changed into a prime (201233120111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8250660 + ... + 8275013.

It is an arithmetic number, because the mean of its divisors is an integer number (10411174620).

Almost surely, 2^201233120121 is an apocalyptic number.

It is an amenable number.

201233120121 is a deficient number, since it is larger than the sum of its proper divisors (131924467719).

201233120121 is a wasteful number, since it uses less digits than its factorization.

201233120121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16525734 (or 16525728 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 201233120121 its reverse (121021332102), we get a palindrome (322254452223).

It can be divided in two parts, 2012 and 33120121, that added together give a palindrome (33122133).

The spelling of 201233120121 in words is "two hundred one billion, two hundred thirty-three million, one hundred twenty thousand, one hundred twenty-one".