201131221332 has 48 divisors (see below), whose sum is σ = 472632632640. Its totient is φ = 66569653248.

The previous prime is 201131221327. The next prime is 201131221337. The reversal of 201131221332 is 233122131102.

201131221332 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (201131221327) and next prime (201131221337).

It is a junction number, because it is equal to n+sod(n) for n = 201131221299 and 201131221308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201131221337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1376038 + ... + 1515170.

It is an arithmetic number, because the mean of its divisors is an integer number (9846513180).

Almost surely, 2^201131221332 is an apocalyptic number.

It is an amenable number.

201131221332 is an abundant number, since it is smaller than the sum of its proper divisors (271501411308).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201131221332 is a wasteful number, since it uses less digits than its factorization.

201131221332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139992 (or 139990 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 201131221332 its reverse (233122131102), we get a palindrome (434253352434).

The spelling of 201131221332 in words is "two hundred one billion, one hundred thirty-one million, two hundred twenty-one thousand, three hundred thirty-two".