12121101021067 has 2 divisors, whose sum is σ = 12121101021068. Its totient is φ = 12121101021066.

The previous prime is 12121101020983. The next prime is 12121101021101. The reversal of 12121101021067 is 76012010112121.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (76012010112121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12121101021067 - 2¹¹ = 12121101019019 is a prime.

It is a super-2 number, since 2×12121101021067² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10121101021067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6060550510533 + 6060550510534.

It is an arithmetic number, because the mean of its divisors is an integer number (6060550510534).

Almost surely, 2^{12121101021067} is an apocalyptic number.

12121101021067 is a deficient number, since it is larger than the sum of its proper divisors (1).

12121101021067 is an equidigital number, since it uses as much as digits as its factorization.

12121101021067 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 25.

Adding to 12121101021067 its reverse (76012010112121), we get a palindrome (88133111133188).

The spelling of 12121101021067 in words is "twelve trillion, one hundred twenty-one billion, one hundred one million, twenty-one thousand, sixty-seven".