201212120 has 16 divisors (see below), whose sum is σ = 452727360. Its totient is φ = 80484832.

The previous prime is 201212117. The next prime is 201212159. The reversal of 201212120 is 21212102.

It is a happy number.

201212120 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2515112 + ... + 2515191.

It is an arithmetic number, because the mean of its divisors is an integer number (28295460).

Almost surely, 2^201212120 is an apocalyptic number.

201212120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201212120 is an abundant number, since it is smaller than the sum of its proper divisors (251515240).

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

201212120 is a wasteful number, since it uses less digits than its factorization.

201212120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5030314 (or 5030310 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 201212120 is about 14184.9258017094. The cubic root of 201212120 is about 585.9825890683.

Adding to 201212120 its reverse (21212102), we get a palindrome (222424222).

The spelling of 201212120 in words is "two hundred one million, two hundred twelve thousand, one hundred twenty".