200121221030203 has 16 divisors (see below), whose sum is σ = 220355619886080. Its totient is φ = 180227101444000.

The previous prime is 200121221030197. The next prime is 200121221030233. The reversal of 200121221030203 is 302030122121002.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200121221030203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200121221030233) 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, 276220278 + ... + 276943828.

It is an arithmetic number, because the mean of its divisors is an integer number (13772226242880).

Almost surely, 2^{200121221030203} is an apocalyptic number.

200121221030203 is a deficient number, since it is larger than the sum of its proper divisors (20234398855877).

200121221030203 is a wasteful number, since it uses less digits than its factorization.

200121221030203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 958658.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 200121221030203 its reverse (302030122121002), we get a palindrome (502151343151205).

The spelling of 200121221030203 in words is "two hundred trillion, one hundred twenty-one billion, two hundred twenty-one million, thirty thousand, two hundred three".