10021320120004 has 12 divisors (see below), whose sum is σ = 17540284188924. Its totient is φ = 5009810351744.

The previous prime is 10021320119989. The next prime is 10021320120067. The reversal of 10021320120004 is 40002102312001.

It can be written as a sum of positive squares in 2 ways, for example, as 3896289105604 + 6125031014400 = 1973902^2 + 2474880^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 10021320120004.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212400529 + ... + 212447704.

It is an arithmetic number, because the mean of its divisors is an integer number (1461690349077).

Almost surely, 2^{10021320120004} is an apocalyptic number.

It is an amenable number.

10021320120004 is a deficient number, since it is larger than the sum of its proper divisors (7518964068920).

10021320120004 is a wasteful number, since it uses less digits than its factorization.

10021320120004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424854134 (or 424854132 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 10021320120004 its reverse (40002102312001), we get a palindrome (50023422432005).

The spelling of 10021320120004 in words is "ten trillion, twenty-one billion, three hundred twenty million, one hundred twenty thousand, four".