203212122 has 8 divisors (see below), whose sum is σ = 406424256. Its totient is φ = 67737372.

The previous prime is 203212117. The next prime is 203212133. The reversal of 203212122 is 221212302.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

203212122 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16934338 + ... + 16934349.

It is an arithmetic number, because the mean of its divisors is an integer number (50803032).

Almost surely, 2^203212122 is an apocalyptic number.

203212122 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

203212122 is a wasteful number, since it uses less digits than its factorization.

203212122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33868692.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 203212122 is about 14255.2489280265. The cubic root of 203212122 is about 587.9177021661.

Adding to 203212122 its reverse (221212302), we get a palindrome (424424424).

The spelling of 203212122 in words is "two hundred three million, two hundred twelve thousand, one hundred twenty-two".