121222102020011 has 2 divisors, whose sum is σ = 121222102020012. Its totient is φ = 121222102020010.

The previous prime is 121222102019983. The next prime is 121222102020013. The reversal of 121222102020011 is 110020201222121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121222102020011 - 2¹⁴ = 121222102003627 is a prime.

Together with 121222102020013, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (121222102020013) 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, 60611051010005 + 60611051010006.

It is an arithmetic number, because the mean of its divisors is an integer number (60611051010006).

Almost surely, 2^{121222102020011} is an apocalyptic number.

121222102020011 is a deficient number, since it is larger than the sum of its proper divisors (1).

121222102020011 is an equidigital number, since it uses as much as digits as its factorization.

121222102020011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 121222102020011 its reverse (110020201222121), we get a palindrome (231242303242132).

The spelling of 121222102020011 in words is "one hundred twenty-one trillion, two hundred twenty-two billion, one hundred two million, twenty thousand, eleven".