20012204273 has 2 divisors, whose sum is σ = 20012204274. Its totient is φ = 20012204272.

The previous prime is 20012204269. The next prime is 20012204291. The reversal of 20012204273 is 37240221002.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16964281009 + 3047923264 = 130247^2 + 55208^2 .

It is a cyclic number.

It is not a de Polignac number, because 20012204273 - 2² = 20012204269 is a prime.

It is not a weakly prime, because it can be changed into another prime (20012204293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10006102136 + 10006102137.

It is an arithmetic number, because the mean of its divisors is an integer number (10006102137).

Almost surely, 2^20012204273 is an apocalyptic number.

It is an amenable number.

20012204273 is a deficient number, since it is larger than the sum of its proper divisors (1).

20012204273 is an equidigital number, since it uses as much as digits as its factorization.

20012204273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 23.

Adding to 20012204273 its reverse (37240221002), we get a palindrome (57252425275).

The spelling of 20012204273 in words is "twenty billion, twelve million, two hundred four thousand, two hundred seventy-three".