121022111201213 has 2 divisors, whose sum is σ = 121022111201214. Its totient is φ = 121022111201212.

The previous prime is 121022111201207. The next prime is 121022111201227. The reversal of 121022111201213 is 312102111220121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118046769094489 + 2975342106724 = 10864933^2 + 1724918^2 .

It is a cyclic number.

It is not a de Polignac number, because 121022111201213 - 2¹⁶ = 121022111135677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121022111204213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60511055600606 + 60511055600607.

It is an arithmetic number, because the mean of its divisors is an integer number (60511055600607).

Almost surely, 2^{121022111201213} is an apocalyptic number.

It is an amenable number.

121022111201213 is a deficient number, since it is larger than the sum of its proper divisors (1).

121022111201213 is an equidigital number, since it uses as much as digits as its factorization.

121022111201213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 20.

Adding to 121022111201213 its reverse (312102111220121), we get a palindrome (433124222421334).

The spelling of 121022111201213 in words is "one hundred twenty-one trillion, twenty-two billion, one hundred eleven million, two hundred one thousand, two hundred thirteen".