214144334221 has 4 divisors (see below), whose sum is σ = 223454957472. Its totient is φ = 204833710972.

The previous prime is 214144334191. The next prime is 214144334237. The reversal of 214144334221 is 122433441412.

It is a happy number.

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 214144334221 - 2¹³ = 214144326029 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 (214144334251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4655311591 + ... + 4655311636.

It is an arithmetic number, because the mean of its divisors is an integer number (55863739368).

Almost surely, 2^214144334221 is an apocalyptic number.

It is an amenable number.

214144334221 is a deficient number, since it is larger than the sum of its proper divisors (9310623251).

214144334221 is an equidigital number, since it uses as much as digits as its factorization.

214144334221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9310623250.

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

Adding to 214144334221 its reverse (122433441412), we get a palindrome (336577775633).

The spelling of 214144334221 in words is "two hundred fourteen billion, one hundred forty-four million, three hundred thirty-four thousand, two hundred twenty-one".