3401220221 has 8 divisors (see below), whose sum is σ = 3887504064. Its totient is φ = 2915035200.

The previous prime is 3401220181. The next prime is 3401220247. The reversal of 3401220221 is 1220221043.

3401220221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3401220221 - 2²⁶ = 3334111357 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3401220221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3401220271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76946 + ... + 112796.

It is an arithmetic number, because the mean of its divisors is an integer number (485938008).

Almost surely, 2^3401220221 is an apocalyptic number.

It is an amenable number.

3401220221 is a deficient number, since it is larger than the sum of its proper divisors (486283843).

3401220221 is a wasteful number, since it uses less digits than its factorization.

3401220221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49411.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 3401220221 is about 58319.9813185841. The cubic root of 3401220221 is about 1503.8744609370.

Adding to 3401220221 its reverse (1220221043), we get a palindrome (4621441264).

The spelling of 3401220221 in words is "three billion, four hundred one million, two hundred twenty thousand, two hundred twenty-one".