20120012220073 has 2 divisors, whose sum is σ = 20120012220074. Its totient is φ = 20120012220072.

The previous prime is 20120012220059. The next prime is 20120012220163. The reversal of 20120012220073 is 37002221002102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15390030998169 + 4729981221904 = 3923013^2 + 2174852^2 .

It is a cyclic number.

It is not a de Polignac number, because 20120012220073 - 2²¹ = 20120010122921 is a prime.

It is not a weakly prime, because it can be changed into another prime (20120012220043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10060006110036 + 10060006110037.

It is an arithmetic number, because the mean of its divisors is an integer number (10060006110037).

Almost surely, 2^{20120012220073} is an apocalyptic number.

It is an amenable number.

20120012220073 is a deficient number, since it is larger than the sum of its proper divisors (1).

20120012220073 is an equidigital number, since it uses as much as digits as its factorization.

20120012220073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 22.

Adding to 20120012220073 its reverse (37002221002102), we get a palindrome (57122233222175).

The spelling of 20120012220073 in words is "twenty trillion, one hundred twenty billion, twelve million, two hundred twenty thousand, seventy-three".