3221012425 has 12 divisors (see below), whose sum is σ = 3995660556. Its totient is φ = 2575774400.

The previous prime is 3221012401. The next prime is 3221012527. The reversal of 3221012425 is 5242101223.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 24127744 + 3196884681 = 4912^2 + 56541^2 .

It is not a de Polignac number, because 3221012425 - 2¹⁹ = 3220488137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3221012396 and 3221012405.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40947 + ... + 90103.

It is an arithmetic number, because the mean of its divisors is an integer number (332971713).

Almost surely, 2^3221012425 is an apocalyptic number.

It is an amenable number.

3221012425 is a deficient number, since it is larger than the sum of its proper divisors (774648131).

3221012425 is a wasteful number, since it uses less digits than its factorization.

3221012425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51788 (or 51783 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 3221012425 is about 56753.9639584761. The cubic root of 3221012425 is about 1476.8310001000.

Adding to 3221012425 its reverse (5242101223), we get a palindrome (8463113648).

The spelling of 3221012425 in words is "three billion, two hundred twenty-one million, twelve thousand, four hundred twenty-five".