12021103220117 has 2 divisors, whose sum is σ = 12021103220118. Its totient is φ = 12021103220116.

The previous prime is 12021103220057. The next prime is 12021103220131. The reversal of 12021103220117 is 71102230112021.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9162159932836 + 2858943287281 = 3026906^2 + 1690841^2 .

It is a cyclic number.

It is not a de Polignac number, because 12021103220117 - 2⁶ = 12021103220053 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12021103220092 and 12021103220101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12021103220167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6010551610058 + 6010551610059.

It is an arithmetic number, because the mean of its divisors is an integer number (6010551610059).

Almost surely, 2^{12021103220117} is an apocalyptic number.

It is an amenable number.

12021103220117 is a deficient number, since it is larger than the sum of its proper divisors (1).

12021103220117 is an equidigital number, since it uses as much as digits as its factorization.

12021103220117 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 23.

Adding to 12021103220117 its reverse (71102230112021), we get a palindrome (83123333332138).

The spelling of 12021103220117 in words is "twelve trillion, twenty-one billion, one hundred three million, two hundred twenty thousand, one hundred seventeen".