4204211221 has 12 divisors (see below), whose sum is σ = 4891944288. Its totient is φ = 3602628792.

The previous prime is 4204211213. The next prime is 4204211243. The reversal of 4204211221 is 1221124024.

It is not a de Polignac number, because 4204211221 - 2³ = 4204211213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4204211521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 214390 + ... + 233176.

It is an arithmetic number, because the mean of its divisors is an integer number (407662024).

Almost surely, 2^4204211221 is an apocalyptic number.

It is an amenable number.

4204211221 is a deficient number, since it is larger than the sum of its proper divisors (687733067).

4204211221 is a wasteful number, since it uses less digits than its factorization.

4204211221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23368 (or 23361 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 4204211221 is about 64839.8891192760. The cubic root of 4204211221 is about 1613.9677122924.

Adding to 4204211221 its reverse (1221124024), we get a palindrome (5425335245).

The spelling of 4204211221 in words is "four billion, two hundred four million, two hundred eleven thousand, two hundred twenty-one".