201330332232121 has 4 divisors (see below), whose sum is σ = 202565487644752. Its totient is φ = 200095176819492.

The previous prime is 201330332232119. The next prime is 201330332232173. The reversal of 201330332232121 is 121232233033102.

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 201330332232121 - 2¹ = 201330332232119 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 201330332232121.

It is not an unprimeable number, because it can be changed into a prime (201330332232221) 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, 617577706071 + ... + 617577706396.

It is an arithmetic number, because the mean of its divisors is an integer number (50641371911188).

Almost surely, 2^{201330332232121} is an apocalyptic number.

It is an amenable number.

201330332232121 is a deficient number, since it is larger than the sum of its proper divisors (1235155412631).

201330332232121 is a wasteful number, since it uses less digits than its factorization.

201330332232121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1235155412630.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 201330332232121 its reverse (121232233033102), we get a palindrome (322562565265223).

The spelling of 201330332232121 in words is "two hundred one trillion, three hundred thirty billion, three hundred thirty-two million, two hundred thirty-two thousand, one hundred twenty-one".