2321220004 has 6 divisors (see below), whose sum is σ = 4062135014. Its totient is φ = 1160610000.

The previous prime is 2321219993. The next prime is 2321220079. The reversal of 2321220004 is 4000221232.

It can be written as a sum of positive squares in only one way, i.e., 2246570404 + 74649600 = 47398^2 + 8640^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2321220004.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 290152497 + ... + 290152504.

Almost surely, 2^2321220004 is an apocalyptic number.

It is an amenable number.

2321220004 is a deficient number, since it is larger than the sum of its proper divisors (1740915010).

2321220004 is a wasteful number, since it uses less digits than its factorization.

2321220004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580305005 (or 580305003 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 2321220004 is about 48179.0411278597. The cubic root of 2321220004 is about 1324.0531988190.

Adding to 2321220004 its reverse (4000221232), we get a palindrome (6321441236).

The spelling of 2321220004 in words is "two billion, three hundred twenty-one million, two hundred twenty thousand, four".