4221314332021 has 4 divisors (see below), whose sum is σ = 4228733162700. Its totient is φ = 4213895501344.

The previous prime is 4221314331989. The next prime is 4221314332097. The reversal of 4221314332021 is 1202334131224.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2530310583025 + 1691003748996 = 1590695^2 + 1300386^2 .

It is a cyclic number.

It is not a de Polignac number, because 4221314332021 - 2⁵ = 4221314331989 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 (4221314332321) 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, 3709414486 + ... + 3709415623.

It is an arithmetic number, because the mean of its divisors is an integer number (1057183290675).

Almost surely, 2^{4221314332021} is an apocalyptic number.

It is an amenable number.

4221314332021 is a deficient number, since it is larger than the sum of its proper divisors (7418830679).

4221314332021 is an equidigital number, since it uses as much as digits as its factorization.

4221314332021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7418830678.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 4221314332021 its reverse (1202334131224), we get a palindrome (5423648463245).

The spelling of 4221314332021 in words is "four trillion, two hundred twenty-one billion, three hundred fourteen million, three hundred thirty-two thousand, twenty-one".