1200203300221 has 16 divisors (see below), whose sum is σ = 1273202536960. Its totient is φ = 1129386162240.

The previous prime is 1200203300141. The next prime is 1200203300243. The reversal of 1200203300221 is 1220033020021.

It is a cyclic number.

It is not a de Polignac number, because 1200203300221 - 2¹⁷ = 1200203169149 is a prime.

It is a super-2 number, since 2×1200203300221² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1200203300195 and 1200203300204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200203900221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1504150 + ... + 2159368.

It is an arithmetic number, because the mean of its divisors is an integer number (79575158560).

Almost surely, 2^{1200203300221} is an apocalyptic number.

It is an amenable number.

1200203300221 is a deficient number, since it is larger than the sum of its proper divisors (72999236739).

1200203300221 is a wasteful number, since it uses less digits than its factorization.

1200203300221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656884.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 1200203300221 its reverse (1220033020021), we get a palindrome (2420236320242).

The spelling of 1200203300221 in words is "one trillion, two hundred billion, two hundred three million, three hundred thousand, two hundred twenty-one".