200121220120203 has 48 divisors (see below), whose sum is σ = 318219541043040. Its totient is φ = 125243462324736.

The previous prime is 200121220120193. The next prime is 200121220120259. The reversal of 200121220120203 is 302021022121002.

200121220120203 is a `hidden beast` number, since 2 + 0 + 0 + 121 + 220 + 120 + 203 = 666.

200121220120203 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 200121220120203 - 2¹² = 200121220116107 is a prime.

It is a super-2 number, since 2×200121220120203² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (200121220100203) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 60660100 + ... + 63874017.

It is an arithmetic number, because the mean of its divisors is an integer number (6629573771730).

Almost surely, 2^{200121220120203} is an apocalyptic number.

200121220120203 is a deficient number, since it is larger than the sum of its proper divisors (118098320922837).

200121220120203 is a wasteful number, since it uses less digits than its factorization.

200121220120203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124534538 (or 124534526 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 200121220120203 its reverse (302021022121002), we get a palindrome (502142242241205).

The spelling of 200121220120203 in words is "two hundred trillion, one hundred twenty-one billion, two hundred twenty million, one hundred twenty thousand, two hundred three".