211300230221 has 8 divisors (see below), whose sum is σ = 217016804064. Its totient is φ = 205583959440.

The previous prime is 211300230217. The next prime is 211300230257. The reversal of 211300230221 is 122032003112.

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 211300230221 - 2² = 211300230217 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 211300230221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211300230521) 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, 2570666 + ... + 2651588.

It is an arithmetic number, because the mean of its divisors is an integer number (27127100508).

Almost surely, 2^211300230221 is an apocalyptic number.

It is an amenable number.

211300230221 is a deficient number, since it is larger than the sum of its proper divisors (5716573843).

211300230221 is an equidigital number, since it uses as much as digits as its factorization.

211300230221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151531.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 211300230221 its reverse (122032003112), we get a palindrome (333332233333).

The spelling of 211300230221 in words is "two hundred eleven billion, three hundred million, two hundred thirty thousand, two hundred twenty-one".