121220168351 has 2 divisors, whose sum is σ = 121220168352. Its totient is φ = 121220168350.

The previous prime is 121220168269. The next prime is 121220168353. The reversal of 121220168351 is 153861022121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121220168351 - 2¹⁸ = 121219906207 is a prime.

Together with 121220168353, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121220168353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60610084175 + 60610084176.

It is an arithmetic number, because the mean of its divisors is an integer number (60610084176).

Almost surely, 2^121220168351 is an apocalyptic number.

121220168351 is a deficient number, since it is larger than the sum of its proper divisors (1).

121220168351 is an equidigital number, since it uses as much as digits as its factorization.

121220168351 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 32.

The spelling of 121220168351 in words is "one hundred twenty-one billion, two hundred twenty million, one hundred sixty-eight thousand, three hundred fifty-one".