4022010221 has 2 divisors, whose sum is σ = 4022010222. Its totient is φ = 4022010220.

The previous prime is 4022010217. The next prime is 4022010233. The reversal of 4022010221 is 1220102204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2501400196 + 1520610025 = 50014^2 + 38995^2 .

It is a cyclic number.

It is not a de Polignac number, because 4022010221 - 2² = 4022010217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4022010196 and 4022010205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4022010241) 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 as a sum of consecutive naturals, namely, 2011005110 + 2011005111.

It is an arithmetic number, because the mean of its divisors is an integer number (2011005111).

Almost surely, 2^4022010221 is an apocalyptic number.

It is an amenable number.

4022010221 is a deficient number, since it is larger than the sum of its proper divisors (1).

4022010221 is an equidigital number, since it uses as much as digits as its factorization.

4022010221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 4022010221 is about 63419.3205655816. The cubic root of 4022010221 is about 1590.3073151747.

Adding to 4022010221 its reverse (1220102204), we get a palindrome (5242112425).

The spelling of 4022010221 in words is "four billion, twenty-two million, ten thousand, two hundred twenty-one".