212214300344221 has 24 divisors (see below), whose sum is σ = 248600343521792. Its totient is φ = 177454257321600.

The previous prime is 212214300344209. The next prime is 212214300344339. The reversal of 212214300344221 is 122443003412212.

It is not a de Polignac number, because 212214300344221 - 2¹³ = 212214300336029 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 (212214300342221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 301130356 + ... + 301834258.

Almost surely, 2^{212214300344221} is an apocalyptic number.

It is an amenable number.

212214300344221 is a deficient number, since it is larger than the sum of its proper divisors (36386043177571).

212214300344221 is an equidigital number, since it uses as much as digits as its factorization.

212214300344221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729613 (or 729572 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 212214300344221 its reverse (122443003412212), we get a palindrome (334657303756433).

The spelling of 212214300344221 in words is "two hundred twelve trillion, two hundred fourteen billion, three hundred million, three hundred forty-four thousand, two hundred twenty-one".