4123221211 has 4 divisors (see below), whose sum is σ = 4223787624. Its totient is φ = 4022654800.

The previous prime is 4123221209. The next prime is 4123221227. The reversal of 4123221211 is 1121223214.

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

It is a cyclic number.

It is not a de Polignac number, because 4123221211 - 2¹ = 4123221209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4123221611) 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, 50283145 + ... + 50283226.

It is an arithmetic number, because the mean of its divisors is an integer number (1055946906).

Almost surely, 2^4123221211 is an apocalyptic number.

4123221211 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

4123221211 is a deficient number, since it is larger than the sum of its proper divisors (100566413).

4123221211 is a wasteful number, since it uses less digits than its factorization.

4123221211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100566412.

The product of its digits is 192, while the sum is 19.

The square root of 4123221211 is about 64212.3135465465. The cubic root of 4123221211 is about 1603.5366055193.

Adding to 4123221211 its reverse (1121223214), we get a palindrome (5244444425).

The spelling of 4123221211 in words is "four billion, one hundred twenty-three million, two hundred twenty-one thousand, two hundred eleven".