2220330543421 has 8 divisors (see below), whose sum is σ = 2236476732984. Its totient is φ = 2204240908800.

The previous prime is 2220330543407. The next prime is 2220330543433. The reversal of 2220330543421 is 1243450330222.

It can be written as a sum of positive squares in 4 ways, for example, as 7632643225 + 2212697900196 = 87365^2 + 1487514^2 .

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 2220330543421 - 2¹³ = 2220330535229 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 (2220330543721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14059930 + ... + 14216971.

It is an arithmetic number, because the mean of its divisors is an integer number (279559591623).

Almost surely, 2^{2220330543421} is an apocalyptic number.

It is an amenable number.

2220330543421 is a deficient number, since it is larger than the sum of its proper divisors (16146189563).

2220330543421 is a wasteful number, since it uses less digits than its factorization.

2220330543421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28277471.

The product of its (nonzero) digits is 34560, while the sum is 31.

Adding to 2220330543421 its reverse (1243450330222), we get a palindrome (3463780873643).

The spelling of 2220330543421 in words is "two trillion, two hundred twenty billion, three hundred thirty million, five hundred forty-three thousand, four hundred twenty-one".