4241122221 has 48 divisors (see below), whose sum is σ = 6966411264. Its totient is φ = 2246907168.

The previous prime is 4241122181. The next prime is 4241122229. The reversal of 4241122221 is 1222211424.

It is not a de Polignac number, because 4241122221 - 2⁶ = 4241122157 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4241122229) 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 47 ways as a sum of consecutive naturals, for example, 350356 + ... + 362258.

It is an arithmetic number, because the mean of its divisors is an integer number (145133568).

Almost surely, 2^4241122221 is an apocalyptic number.

It is an amenable number.

4241122221 is a deficient number, since it is larger than the sum of its proper divisors (2725289043).

4241122221 is a wasteful number, since it uses less digits than its factorization.

4241122221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11998 (or 11979 counting only the distinct ones).

The product of its digits is 512, while the sum is 21.

The square root of 4241122221 is about 65123.8990002902. The cubic root of 4241122221 is about 1618.6772493932.

Adding to 4241122221 its reverse (1222211424), we get a palindrome (5463333645).

The spelling of 4241122221 in words is "four billion, two hundred forty-one million, one hundred twenty-two thousand, two hundred twenty-one".