200212230421 has 4 divisors (see below), whose sum is σ = 228813977632. Its totient is φ = 171610483212.

The previous prime is 200212230419. The next prime is 200212230451. The reversal of 200212230421 is 124032212002.

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 not a de Polignac number, because 200212230421 - 2¹ = 200212230419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200212230451) 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, 14300873595 + ... + 14300873608.

It is an arithmetic number, because the mean of its divisors is an integer number (57203494408).

Almost surely, 2^200212230421 is an apocalyptic number.

It is an amenable number.

200212230421 is a deficient number, since it is larger than the sum of its proper divisors (28601747211).

200212230421 is an equidigital number, since it uses as much as digits as its factorization.

200212230421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28601747210.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 200212230421 its reverse (124032212002), we get a palindrome (324244442423).

The spelling of 200212230421 in words is "two hundred billion, two hundred twelve million, two hundred thirty thousand, four hundred twenty-one".