4022220321 has 42 divisors (see below), whose sum is σ = 7015217202. Its totient is φ = 2298391200.

The previous prime is 4022220317. The next prime is 4022220329. The reversal of 4022220321 is 1230222204.

It can be written as a sum of positive squares in only one way, i.e., 3657830400 + 364389921 = 60480^2 + 19089^2 .

It is not a de Polignac number, because 4022220321 - 2² = 4022220317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4022220294 and 4022220303.

It is not an unprimeable number, because it can be changed into a prime (4022220329) 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 41 ways as a sum of consecutive naturals, for example, 20580 + ... + 92021.

It is an arithmetic number, because the mean of its divisors is an integer number (167028981).

Almost surely, 2^4022220321 is an apocalyptic number.

It is an amenable number.

4022220321 is a deficient number, since it is larger than the sum of its proper divisors (2992996881).

4022220321 is an equidigital number, since it uses as much as digits as its factorization.

4022220321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112633 (or 112611 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 4022220321 is about 63420.9769792298. The cubic root of 4022220321 is about 1590.3350059505.

Adding to 4022220321 its reverse (1230222204), we get a palindrome (5252442525).

The spelling of 4022220321 in words is "four billion, twenty-two million, two hundred twenty thousand, three hundred twenty-one".