3225400221 has 8 divisors (see below), whose sum is σ = 4302349344. Its totient is φ = 2149358960.

The previous prime is 3225400181. The next prime is 3225400231. The reversal of 3225400221 is 1220045223.

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

It is a cyclic number.

It is not a de Polignac number, because 3225400221 - 2¹⁷ = 3225269149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3225400231) 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, 218631 + ... + 232916.

It is an arithmetic number, because the mean of its divisors is an integer number (537793668).

Almost surely, 2^3225400221 is an apocalyptic number.

It is an amenable number.

3225400221 is a deficient number, since it is larger than the sum of its proper divisors (1076949123).

3225400221 is a wasteful number, since it uses less digits than its factorization.

3225400221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453931.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 3225400221 is about 56792.6070981074. The cubic root of 3225400221 is about 1477.5012958609.

Adding to 3225400221 its reverse (1220045223), we get a palindrome (4445445444).

The spelling of 3225400221 in words is "three billion, two hundred twenty-five million, four hundred thousand, two hundred twenty-one".