1002201220073 has 2 divisors, whose sum is σ = 1002201220074. Its totient is φ = 1002201220072.

The previous prime is 1002201220067. The next prime is 1002201220081. The reversal of 1002201220073 is 3700221022001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 891186976729 + 111014243344 = 944027^2 + 333188^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1002201220073 is a prime.

It is not a weakly prime, because it can be changed into another prime (1002201222073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501100610036 + 501100610037.

It is an arithmetic number, because the mean of its divisors is an integer number (501100610037).

Almost surely, 2^{1002201220073} is an apocalyptic number.

It is an amenable number.

1002201220073 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002201220073 is an equidigital number, since it uses as much as digits as its factorization.

1002201220073 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 20.

Adding to 1002201220073 its reverse (3700221022001), we get a palindrome (4702422242074).

The spelling of 1002201220073 in words is "one trillion, two billion, two hundred one million, two hundred twenty thousand, seventy-three".