2422021321 has 8 divisors (see below), whose sum is σ = 2453621544. Its totient is φ = 2390599680.

The previous prime is 2422021313. The next prime is 2422021337. The reversal of 2422021321 is 1231202242.

It can be written as a sum of positive squares in 4 ways, for example, as 186622921 + 2235398400 = 13661^2 + 47280^2 .

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 2422021321 - 2³ = 2422021313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2432021321) 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, 17236 + ... + 71701.

It is an arithmetic number, because the mean of its divisors is an integer number (306702693).

Almost surely, 2^2422021321 is an apocalyptic number.

It is an amenable number.

2422021321 is a deficient number, since it is larger than the sum of its proper divisors (31600223).

2422021321 is a wasteful number, since it uses less digits than its factorization.

2422021321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89291.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 2422021321 is about 49214.0358129670. The cubic root of 2422021321 is about 1342.9483830216.

Adding to 2422021321 its reverse (1231202242), we get a palindrome (3653223563).

The spelling of 2422021321 in words is "two billion, four hundred twenty-two million, twenty-one thousand, three hundred twenty-one".