3221078401 has 32 divisors (see below), whose sum is σ = 3648291840. Its totient is φ = 2831786496.

The previous prime is 3221078369. The next prime is 3221078407. The reversal of 3221078401 is 1048701223.

It is not a de Polignac number, because 3221078401 - 2⁵ = 3221078369 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3221078401.

It is not an unprimeable number, because it can be changed into a prime (3221078407) 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 31 ways as a sum of consecutive naturals, for example, 1158525 + ... + 1161301.

It is an arithmetic number, because the mean of its divisors is an integer number (114009120).

Almost surely, 2^3221078401 is an apocalyptic number.

It is an amenable number.

3221078401 is a deficient number, since it is larger than the sum of its proper divisors (427213439).

3221078401 is a wasteful number, since it uses less digits than its factorization.

3221078401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2913.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 3221078401 is about 56754.5452012436. The cubic root of 3221078401 is about 1476.8410833413.

Adding to 3221078401 its reverse (1048701223), we get a palindrome (4269779624).

The spelling of 3221078401 in words is "three billion, two hundred twenty-one million, seventy-eight thousand, four hundred one".