201211252 has 24 divisors (see below), whose sum is σ = 406728000. Its totient is φ = 86079360.

The previous prime is 201211247. The next prime is 201211261. The reversal of 201211252 is 252112102.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 133752 + ... + 135247.

It is an arithmetic number, because the mean of its divisors is an integer number (16947000).

Almost surely, 2^201211252 is an apocalyptic number.

201211252 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

201211252 is an abundant number, since it is smaller than the sum of its proper divisors (205516748).

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

201211252 is a wasteful number, since it uses less digits than its factorization.

201211252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269031 (or 269029 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 201211252 is about 14184.8952058166. The cubic root of 201211252 is about 585.9817464524.

Adding to 201211252 its reverse (252112102), we get a palindrome (453323354).

The spelling of 201211252 in words is "two hundred one million, two hundred eleven thousand, two hundred fifty-two".