4022021321 has 8 divisors (see below), whose sum is σ = 4126399200. Its totient is φ = 3917942560.

The previous prime is 4022021309. The next prime is 4022021369. The reversal of 4022021321 is 1231202204.

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 4022021321 - 2⁶ = 4022021257 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4022021321.

It is not an unprimeable number, because it can be changed into a prime (4022021921) 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, 47411 + ... + 101448.

It is an arithmetic number, because the mean of its divisors is an integer number (515799900).

Almost surely, 2^4022021321 is an apocalyptic number.

4022021321 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

4022021321 is a deficient number, since it is larger than the sum of its proper divisors (104377879).

4022021321 is a wasteful number, since it uses less digits than its factorization.

4022021321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149559.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 4022021321 is about 63419.4080782847. The cubic root of 4022021321 is about 1590.3087781575.

Adding to 4022021321 its reverse (1231202204), we get a palindrome (5253223525).

The spelling of 4022021321 in words is "four billion, twenty-two million, twenty-one thousand, three hundred twenty-one".