12121022020193 has 2 divisors, whose sum is σ = 12121022020194. Its totient is φ = 12121022020192.

The previous prime is 12121022020189. The next prime is 12121022020291. The reversal of 12121022020193 is 39102022012121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8158661057569 + 3962360962624 = 2856337^2 + 1990568^2 .

It is a cyclic number.

It is not a de Polignac number, because 12121022020193 - 2² = 12121022020189 is a prime.

It is not a weakly prime, because it can be changed into another prime (12121022023193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6060511010096 + 6060511010097.

It is an arithmetic number, because the mean of its divisors is an integer number (6060511010097).

Almost surely, 2^{12121022020193} is an apocalyptic number.

It is an amenable number.

12121022020193 is a deficient number, since it is larger than the sum of its proper divisors (1).

12121022020193 is an equidigital number, since it uses as much as digits as its factorization.

12121022020193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 26.

The spelling of 12121022020193 in words is "twelve trillion, one hundred twenty-one billion, twenty-two million, twenty thousand, one hundred ninety-three".