200121210002201 has 4 divisors (see below), whose sum is σ = 200128344221904. Its totient is φ = 200114075782500.

The previous prime is 200121210002173. The next prime is 200121210002209. The reversal of 200121210002201 is 102200012121002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 200121210002201 - 2⁶ = 200121210002137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200121210002209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3567067775 + ... + 3567123876.

It is an arithmetic number, because the mean of its divisors is an integer number (50032086055476).

Almost surely, 2^{200121210002201} is an apocalyptic number.

It is an amenable number.

200121210002201 is a deficient number, since it is larger than the sum of its proper divisors (7134219703).

200121210002201 is an equidigital number, since it uses as much as digits as its factorization.

200121210002201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7134219702.

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

Adding to 200121210002201 its reverse (102200012121002), we get a palindrome (302321222123203).

The spelling of 200121210002201 in words is "two hundred trillion, one hundred twenty-one billion, two hundred ten million, two thousand, two hundred one".