200201020210121 has 6 divisors (see below), whose sum is σ = 232886901060810. Its totient is φ = 171600874465776.

The previous prime is 200201020210111. The next prime is 200201020210153. The reversal of 200201020210121 is 121012020102002.

It can be written as a sum of positive squares in only one way, i.e., 178030445268025 + 22170574942096 = 13342805^2 + 4708564^2 .

It is not a de Polignac number, because 200201020210121 - 2²² = 200201016015817 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200201020210096 and 200201020210105.

It is not an unprimeable number, because it can be changed into a prime (200201020210111) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2042867553116 + ... + 2042867553213.

It is an arithmetic number, because the mean of its divisors is an integer number (38814483510135).

Almost surely, 2^{200201020210121} is an apocalyptic number.

It is an amenable number.

200201020210121 is a deficient number, since it is larger than the sum of its proper divisors (32685880850689).

200201020210121 is an equidigital number, since it uses as much as digits as its factorization.

200201020210121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4085735106343 (or 4085735106336 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 200201020210121 its reverse (121012020102002), we get a palindrome (321213040312123).

The spelling of 200201020210121 in words is "two hundred trillion, two hundred one billion, twenty million, two hundred ten thousand, one hundred twenty-one".