320021220000007 has 2 divisors, whose sum is σ = 320021220000008. Its totient is φ = 320021220000006.

The previous prime is 320021219999963. The next prime is 320021220000061. The reversal of 320021220000007 is 700000022120023.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320021220000007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320021220000107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160010610000003 + 160010610000004.

It is an arithmetic number, because the mean of its divisors is an integer number (160010610000004).

Almost surely, 2^{320021220000007} is an apocalyptic number.

320021220000007 is a deficient number, since it is larger than the sum of its proper divisors (1).

320021220000007 is an equidigital number, since it uses as much as digits as its factorization.

320021220000007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 19.

The spelling of 320021220000007 in words is "three hundred twenty trillion, twenty-one billion, two hundred twenty million, seven", and thus it is an aban number.