200121001203 has 16 divisors (see below), whose sum is σ = 268257540096. Its totient is φ = 132699401760.

The previous prime is 200121001193. The next prime is 200121001253. The reversal of 200121001203 is 302100121002.

It is not a de Polignac number, because 200121001203 - 2¹⁰ = 200121000179 is a prime.

It is a super-2 number, since 2×200121001203² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (200121001253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6409476 + ... + 6440622.

It is an arithmetic number, because the mean of its divisors is an integer number (16766096256).

Almost surely, 2^200121001203 is an apocalyptic number.

200121001203 is a deficient number, since it is larger than the sum of its proper divisors (68136538893).

200121001203 is a wasteful number, since it uses less digits than its factorization.

200121001203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42554.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 200121001203 its reverse (302100121002), we get a palindrome (502221122205).

The spelling of 200121001203 in words is "two hundred billion, one hundred twenty-one million, one thousand, two hundred three".