200210002121 has 4 divisors (see below), whose sum is σ = 200215554000. Its totient is φ = 200204450244.

The previous prime is 200210002087. The next prime is 200210002189. The reversal of 200210002121 is 121200012002.

It is a happy number.

200210002121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 200210002121 - 2¹⁴ = 200209985737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200210302121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2721491 + ... + 2794088.

It is an arithmetic number, because the mean of its divisors is an integer number (50053888500).

Almost surely, 2^200210002121 is an apocalyptic number.

It is an amenable number.

200210002121 is a deficient number, since it is larger than the sum of its proper divisors (5551879).

200210002121 is an equidigital number, since it uses as much as digits as its factorization.

200210002121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5551878.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 200210002121 its reverse (121200012002), we get a palindrome (321410014123).

The spelling of 200210002121 in words is "two hundred billion, two hundred ten million, two thousand, one hundred twenty-one".