200210211021221 has 8 divisors (see below), whose sum is σ = 200505283794144. Its totient is φ = 199915143919920.

The previous prime is 200210211021211. The next prime is 200210211021239. The reversal of 200210211021221 is 122120112012002.

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

It is a cyclic number.

It is not a de Polignac number, because 200210211021221 - 2⁶ = 200210211021157 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 200210211021221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200210211021211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72036131 + ... + 74763791.

It is an arithmetic number, because the mean of its divisors is an integer number (25063160474268).

Almost surely, 2^{200210211021221} is an apocalyptic number.

It is an amenable number.

200210211021221 is a deficient number, since it is larger than the sum of its proper divisors (295072772923).

200210211021221 is a wasteful number, since it uses less digits than its factorization.

200210211021221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2835811.

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

Adding to 200210211021221 its reverse (122120112012002), we get a palindrome (322330323033223).

The spelling of 200210211021221 in words is "two hundred trillion, two hundred ten billion, two hundred eleven million, twenty-one thousand, two hundred twenty-one".