200221100002191 has 8 divisors (see below), whose sum is σ = 275573126884864. Its totient is φ = 129174903227160.

The previous prime is 200221100002177. The next prime is 200221100002199. The reversal of 200221100002191 is 191200001122002.

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

It is not a de Polignac number, because 200221100002191 - 2⁹ = 200221100001679 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 (200221100002199) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1076457526801 + ... + 1076457526986.

It is an arithmetic number, because the mean of its divisors is an integer number (34446640860608).

Almost surely, 2^{200221100002191} is an apocalyptic number.

200221100002191 is a deficient number, since it is larger than the sum of its proper divisors (75352026882673).

200221100002191 is a wasteful number, since it uses less digits than its factorization.

200221100002191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2152915053821.

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 200221100002191 its reverse (191200001122002), we get a palindrome (391421101124193).

The spelling of 200221100002191 in words is "two hundred trillion, two hundred twenty-one billion, one hundred million, two thousand, one hundred ninety-one".