12012000110221 has 2 divisors, whose sum is σ = 12012000110222. Its totient is φ = 12012000110220.

The previous prime is 12012000110219. The next prime is 12012000110249. The reversal of 12012000110221 is 12201100021021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8116863678121 + 3895136432100 = 2849011^2 + 1973610^2 .

It is a cyclic number.

It is not a de Polignac number, because 12012000110221 - 2¹ = 12012000110219 is a prime.

It is a super-2 number, since 2×12012000110221² (a number of 27 digits) contains 22 as substring.

Together with 12012000110219, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12012000110321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6006000055110 + 6006000055111.

It is an arithmetic number, because the mean of its divisors is an integer number (6006000055111).

Almost surely, 2^{12012000110221} is an apocalyptic number.

It is an amenable number.

12012000110221 is a deficient number, since it is larger than the sum of its proper divisors (1).

12012000110221 is an equidigital number, since it uses as much as digits as its factorization.

12012000110221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12012000110221 its reverse (12201100021021), we get a palindrome (24213100131242).

The spelling of 12012000110221 in words is "twelve trillion, twelve billion, one hundred ten thousand, two hundred twenty-one".