121222102020013 has 2 divisors, whose sum is σ = 121222102020014. Its totient is φ = 121222102020012.

The previous prime is 121222102020011. The next prime is 121222102020029. The reversal of 121222102020013 is 310020201222121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 88420113820809 + 32801988199204 = 9403197^2 + 5727302^2 .

It is a cyclic number.

It is not a de Polignac number, because 121222102020013 - 2¹ = 121222102020011 is a prime.

Together with 121222102020011, 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 (121222102020011) 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, 60611051010006 + 60611051010007.

It is an arithmetic number, because the mean of its divisors is an integer number (60611051010007).

Almost surely, 2^{121222102020013} is an apocalyptic number.

It is an amenable number.

121222102020013 is a deficient number, since it is larger than the sum of its proper divisors (1).

121222102020013 is an equidigital number, since it uses as much as digits as its factorization.

121222102020013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 121222102020013 its reverse (310020201222121), we get a palindrome (431242303242134).

The spelling of 121222102020013 in words is "one hundred twenty-one trillion, two hundred twenty-two billion, one hundred two million, twenty thousand, thirteen".