3404212221 has 16 divisors (see below), whose sum is σ = 4803010560. Its totient is φ = 2140224240.

The previous prime is 3404212219. The next prime is 3404212223. The reversal of 3404212221 is 1222124043.

It is an interprime number because it is at equal distance from previous prime (3404212219) and next prime (3404212223).

It is not a de Polignac number, because 3404212221 - 2¹ = 3404212219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3404212223) 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 15 ways as a sum of consecutive naturals, for example, 342541 + ... + 352338.

It is an arithmetic number, because the mean of its divisors is an integer number (300188160).

Almost surely, 2^3404212221 is an apocalyptic number.

It is an amenable number.

3404212221 is a deficient number, since it is larger than the sum of its proper divisors (1398798339).

3404212221 is a wasteful number, since it uses less digits than its factorization.

3404212221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694976.

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

The square root of 3404212221 is about 58345.6272654601. The cubic root of 3404212221 is about 1504.3153099395.

Adding to 3404212221 its reverse (1222124043), we get a palindrome (4626336264).

The spelling of 3404212221 in words is "three billion, four hundred four million, two hundred twelve thousand, two hundred twenty-one".