121301202021667 has 2 divisors, whose sum is σ = 121301202021668. Its totient is φ = 121301202021666.

The previous prime is 121301202021611. The next prime is 121301202021679. The reversal of 121301202021667 is 766120202103121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121301202021667 - 2¹¹ = 121301202019619 is a prime.

It is a super-2 number, since 2×121301202021667² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121301202021697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60650601010833 + 60650601010834.

It is an arithmetic number, because the mean of its divisors is an integer number (60650601010834).

Almost surely, 2^{121301202021667} is an apocalyptic number.

121301202021667 is a deficient number, since it is larger than the sum of its proper divisors (1).

121301202021667 is an equidigital number, since it uses as much as digits as its factorization.

121301202021667 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 34.

Adding to 121301202021667 its reverse (766120202103121), we get a palindrome (887421404124788).

The spelling of 121301202021667 in words is "one hundred twenty-one trillion, three hundred one billion, two hundred two million, twenty-one thousand, six hundred sixty-seven".