325221215044 has 48 divisors (see below), whose sum is σ = 649982462976. Its totient is φ = 140939805600.

The previous prime is 325221215041. The next prime is 325221215089. The reversal of 325221215044 is 440512122523.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 325221214997 and 325221215015.

It is not an unprimeable number, because it can be changed into a prime (325221215041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 212712 + ... + 834079.

It is an arithmetic number, because the mean of its divisors is an integer number (13541301312).

Almost surely, 2^325221215044 is an apocalyptic number.

It is an amenable number.

325221215044 is a deficient number, since it is larger than the sum of its proper divisors (324761247932).

325221215044 is a wasteful number, since it uses less digits than its factorization.

325221215044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1047136 (or 1047134 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 325221215044 its reverse (440512122523), we get a palindrome (765733337567).

The spelling of 325221215044 in words is "three hundred twenty-five billion, two hundred twenty-one million, two hundred fifteen thousand, forty-four".