12021232273 has 2 divisors, whose sum is σ = 12021232274. Its totient is φ = 12021232272.

The previous prime is 12021232271. The next prime is 12021232313. The reversal of 12021232273 is 37223212021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10981363264 + 1039869009 = 104792^2 + 32247^2 .

It is a cyclic number.

It is not a de Polignac number, because 12021232273 - 2¹ = 12021232271 is a prime.

It is a super-2 number, since 2×12021232273² (a number of 21 digits) contains 22 as substring.

Together with 12021232271, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12021232271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6010616136 + 6010616137.

It is an arithmetic number, because the mean of its divisors is an integer number (6010616137).

Almost surely, 2^12021232273 is an apocalyptic number.

It is an amenable number.

12021232273 is a deficient number, since it is larger than the sum of its proper divisors (1).

12021232273 is an equidigital number, since it uses as much as digits as its factorization.

12021232273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 25.

Adding to 12021232273 its reverse (37223212021), we get a palindrome (49244444294).

The spelling of 12021232273 in words is "twelve billion, twenty-one million, two hundred thirty-two thousand, two hundred seventy-three".