200212122002221 has 4 divisors (see below), whose sum is σ = 228813853716832. Its totient is φ = 171610390287612.

The previous prime is 200212122002209. The next prime is 200212122002237. The reversal of 200212122002221 is 122200221212002.

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 200212122002221 - 2²³ = 200212113613613 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 (200212122002261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14300865857295 + ... + 14300865857308.

It is an arithmetic number, because the mean of its divisors is an integer number (57203463429208).

Almost surely, 2^{200212122002221} is an apocalyptic number.

It is an amenable number.

200212122002221 is a deficient number, since it is larger than the sum of its proper divisors (28601731714611).

200212122002221 is an equidigital number, since it uses as much as digits as its factorization.

200212122002221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28601731714610.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 200212122002221 its reverse (122200221212002), we get a palindrome (322412343214223).

The spelling of 200212122002221 in words is "two hundred trillion, two hundred twelve billion, one hundred twenty-two million, two thousand, two hundred twenty-one".