210200002121 has 8 divisors (see below), whose sum is σ = 220130977344. Its totient is φ = 200335014000.

The previous prime is 210200002097. The next prime is 210200002123. The reversal of 210200002121 is 121200002012.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 210200002121 - 2²² = 210195807817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210200002123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16490255 + ... + 16502996.

It is an arithmetic number, because the mean of its divisors is an integer number (27516372168).

Almost surely, 2^210200002121 is an apocalyptic number.

It is an amenable number.

210200002121 is a deficient number, since it is larger than the sum of its proper divisors (9930975223).

210200002121 is a wasteful number, since it uses less digits than its factorization.

210200002121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32993551.

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

Adding to 210200002121 its reverse (121200002012), we get a palindrome (331400004133).

The spelling of 210200002121 in words is "two hundred ten billion, two hundred million, two thousand, one hundred twenty-one".