203200412220 has 72 divisors (see below), whose sum is σ = 663788020896. Its totient is φ = 50018562432.

The previous prime is 203200412189. The next prime is 203200412231. The reversal of 203200412220 is 22214002302.

203200412220 is a `hidden beast` number, since 2 + 0 + 32 + 0 + 0 + 412 + 220 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 203200412193 and 203200412202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43416552 + ... + 43421231.

It is an arithmetic number, because the mean of its divisors is an integer number (9219278068).

Almost surely, 2^203200412220 is an apocalyptic number.

203200412220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203200412220 is an abundant number, since it is smaller than the sum of its proper divisors (460587608676).

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

203200412220 is a wasteful number, since it uses less digits than its factorization.

203200412220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86837811 (or 86837806 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 203200412220 its reverse (22214002302), we get a palindrome (225414414522).

The spelling of 203200412220 in words is "two hundred three billion, two hundred million, four hundred twelve thousand, two hundred twenty".