200121213 has 16 divisors (see below), whose sum is σ = 275876352. Its totient is φ = 128904000.

The previous prime is 200121211. The next prime is 200121221. The reversal of 200121213 is 312121002.

200121213 is nontrivially palindromic in base 2.

It is not a de Polignac number, because 200121213 - 2¹ = 200121211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200121211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75043 + ... + 77663.

It is an arithmetic number, because the mean of its divisors is an integer number (17242272).

Almost surely, 2^200121213 is an apocalyptic number.

It is an amenable number.

200121213 is a deficient number, since it is larger than the sum of its proper divisors (75755139).

200121213 is a wasteful number, since it uses less digits than its factorization.

200121213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3476.

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

The square root of 200121213 is about 14146.4205013141. The cubic root of 200121213 is about 584.9216667705.

Adding to 200121213 its reverse (312121002), we get a palindrome (512242215).

The spelling of 200121213 in words is "two hundred million, one hundred twenty-one thousand, two hundred thirteen".