4204123221 has 16 divisors (see below), whose sum is σ = 5707892736. Its totient is φ = 2751966576.

The previous prime is 4204123211. The next prime is 4204123237. The reversal of 4204123221 is 1223214024.

It is not a de Polignac number, because 4204123221 - 2⁷ = 4204123093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4204123211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11205 + ... + 92378.

It is an arithmetic number, because the mean of its divisors is an integer number (356743296).

Almost surely, 2^4204123221 is an apocalyptic number.

It is an amenable number.

4204123221 is a deficient number, since it is larger than the sum of its proper divisors (1503769515).

4204123221 is a wasteful number, since it uses less digits than its factorization.

4204123221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103832.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 4204123221 is about 64839.2105211037. The cubic root of 4204123221 is about 1613.9564513493.

Adding to 4204123221 its reverse (1223214024), we get a palindrome (5427337245).

The spelling of 4204123221 in words is "four billion, two hundred four million, one hundred twenty-three thousand, two hundred twenty-one".