201221203000 has 32 divisors (see below), whose sum is σ = 470857617360. Its totient is φ = 80488480800.

The previous prime is 201221202997. The next prime is 201221203013. The reversal of 201221203000 is 302122102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100609602 + ... + 100611601.

Almost surely, 2^201221203000 is an apocalyptic number.

201221203000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201221203000 is an abundant number, since it is smaller than the sum of its proper divisors (269636414360).

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

201221203000 is a wasteful number, since it uses less digits than its factorization.

201221203000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201221224 (or 201221210 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 201221203000 its reverse (302122102), we get a palindrome (201523325102).

The spelling of 201221203000 in words is "two hundred one billion, two hundred twenty-one million, two hundred three thousand".