201330212231 has 4 divisors (see below), whose sum is σ = 202454962200. Its totient is φ = 200205462264.

The previous prime is 201330212207. The next prime is 201330212233. The reversal of 201330212231 is 132212033102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201330212231 is a prime.

It is a super-2 number, since 2×201330212231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201330212233) 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, 562374716 + ... + 562375073.

It is an arithmetic number, because the mean of its divisors is an integer number (50613740550).

Almost surely, 2^201330212231 is an apocalyptic number.

201330212231 is a deficient number, since it is larger than the sum of its proper divisors (1124749969).

201330212231 is a wasteful number, since it uses less digits than its factorization.

201330212231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1124749968.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 201330212231 its reverse (132212033102), we get a palindrome (333542245333).

The spelling of 201330212231 in words is "two hundred one billion, three hundred thirty million, two hundred twelve thousand, two hundred thirty-one".