201331122 has 16 divisors (see below), whose sum is σ = 402801600. Its totient is φ = 67087152.

The previous prime is 201331111. The next prime is 201331133. The reversal of 201331122 is 221133102.

It is an interprime number because it is at equal distance from previous prime (201331111) and next prime (201331133).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29379 + ... + 35577.

It is an arithmetic number, because the mean of its divisors is an integer number (25175100).

Almost surely, 2^201331122 is an apocalyptic number.

201331122 is an abundant number, since it is smaller than the sum of its proper divisors (201470478).

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

201331122 is a wasteful number, since it uses less digits than its factorization.

201331122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11617.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 201331122 is about 14189.1198458537. The cubic root of 201331122 is about 586.0980880042.

Adding to 201331122 its reverse (221133102), we get a palindrome (422464224).

The spelling of 201331122 in words is "two hundred one million, three hundred thirty-one thousand, one hundred twenty-two".