203212032220 has 24 divisors (see below), whose sum is σ = 435824956224. Its totient is φ = 79555348416.

The previous prime is 203212032217. The next prime is 203212032259. The reversal of 203212032220 is 22230212302.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108090567 + ... + 108092446.

It is an arithmetic number, because the mean of its divisors is an integer number (18159373176).

Almost surely, 2^203212032220 is an apocalyptic number.

203212032220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203212032220 is an abundant number, since it is smaller than the sum of its proper divisors (232612924004).

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

203212032220 is a wasteful number, since it uses less digits than its factorization.

203212032220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216183069 (or 216183067 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 203212032220 its reverse (22230212302), we get a palindrome (225442244522).

The spelling of 203212032220 in words is "two hundred three billion, two hundred twelve million, thirty-two thousand, two hundred twenty".