201122032231 has 4 divisors (see below), whose sum is σ = 202967188600. Its totient is φ = 199276875864.

The previous prime is 201122032171. The next prime is 201122032289. The reversal of 201122032231 is 132230221102.

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

It is a cyclic number.

It is not a de Polignac number, because 201122032231 - 2²³ = 201113643623 is a prime.

It is a super-2 number, since 2×201122032231² (a number of 23 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 = 201122032199 and 201122032208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201122032291) 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, 922578021 + ... + 922578238.

It is an arithmetic number, because the mean of its divisors is an integer number (50741797150).

Almost surely, 2^201122032231 is an apocalyptic number.

201122032231 is a deficient number, since it is larger than the sum of its proper divisors (1845156369).

201122032231 is a wasteful number, since it uses less digits than its factorization.

201122032231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1845156368.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 201122032231 its reverse (132230221102), we get a palindrome (333352253333).

The spelling of 201122032231 in words is "two hundred one billion, one hundred twenty-two million, thirty-two thousand, two hundred thirty-one".