4221022231 has 2 divisors, whose sum is σ = 4221022232. Its totient is φ = 4221022230.

The previous prime is 4221022193. The next prime is 4221022321. The reversal of 4221022231 is 1322201224.

Together with next prime (4221022321) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4221022231 - 2⁷ = 4221022103 is a prime.

It is a super-2 number, since 2×4221022231² = 35634057349192434722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4221022199 and 4221022208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4221022331) 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, 2110511115 + 2110511116.

It is an arithmetic number, because the mean of its divisors is an integer number (2110511116).

Almost surely, 2^4221022231 is an apocalyptic number.

4221022231 is a deficient number, since it is larger than the sum of its proper divisors (1).

4221022231 is an equidigital number, since it uses as much as digits as its factorization.

4221022231 is an odious number, because the sum of its binary digits is odd.

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

The square root of 4221022231 is about 64969.3945715981. The cubic root of 4221022231 is about 1616.1160616522.

Adding to 4221022231 its reverse (1322201224), we get a palindrome (5543223455).

The spelling of 4221022231 in words is "four billion, two hundred twenty-one million, twenty-two thousand, two hundred thirty-one".