4221022105 has 4 divisors (see below), whose sum is σ = 5065226532. Its totient is φ = 3376817680.

The previous prime is 4221022103. The next prime is 4221022109. The reversal of 4221022105 is 5012201224.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3261323664 + 959698441 = 57108^2 + 30979^2 .

It is not a de Polignac number, because 4221022105 - 2¹ = 4221022103 is a prime.

It is a super-2 number, since 2×4221022105² = 35634055221797262050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4221022103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 422102206 + ... + 422102215.

It is an arithmetic number, because the mean of its divisors is an integer number (1266306633).

Almost surely, 2^4221022105 is an apocalyptic number.

It is an amenable number.

4221022105 is a deficient number, since it is larger than the sum of its proper divisors (844204427).

4221022105 is an equidigital number, since it uses as much as digits as its factorization.

4221022105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844204426.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 4221022105 is about 64969.3936019107. The cubic root of 4221022105 is about 1616.1160455716.

Adding to 4221022105 its reverse (5012201224), we get a palindrome (9233223329).

The spelling of 4221022105 in words is "four billion, two hundred twenty-one million, twenty-two thousand, one hundred five".