200212210101221 has 4 divisors (see below), whose sum is σ = 201652585713600. Its totient is φ = 198771834488844.

The previous prime is 200212210101181. The next prime is 200212210101229. The reversal of 200212210101221 is 122101012212002.

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 200212210101221 - 2²⁶ = 200212142992357 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 200212210101221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200212210101229) 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, 720187805981 + ... + 720187806258.

It is an arithmetic number, because the mean of its divisors is an integer number (50413146428400).

Almost surely, 2^{200212210101221} is an apocalyptic number.

It is an amenable number.

200212210101221 is a deficient number, since it is larger than the sum of its proper divisors (1440375612379).

200212210101221 is a wasteful number, since it uses less digits than its factorization.

200212210101221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1440375612378.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 200212210101221 its reverse (122101012212002), we get a palindrome (322313222313223).

It can be divided in two parts, 2002 and 12210101221, that multiplied together give a palindrome (24444622644442).

The spelling of 200212210101221 in words is "two hundred trillion, two hundred twelve billion, two hundred ten million, one hundred one thousand, two hundred twenty-one".