121000006925851 has 2 divisors, whose sum is σ = 121000006925852. Its totient is φ = 121000006925850.

The previous prime is 121000006925849. The next prime is 121000006925857. The reversal of 121000006925851 is 158529600000121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121000006925851 - 2¹ = 121000006925849 is a prime.

Together with 121000006925849, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (121000006925857) 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, 60500003462925 + 60500003462926.

It is an arithmetic number, because the mean of its divisors is an integer number (60500003462926).

Almost surely, 2^{121000006925851} is an apocalyptic number.

121000006925851 is a deficient number, since it is larger than the sum of its proper divisors (1).

121000006925851 is an equidigital number, since it uses as much as digits as its factorization.

121000006925851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43200, while the sum is 40.

Adding to 121000006925851 its reverse (158529600000121), we get a palindrome (279529606925972).

The spelling of 121000006925851 in words is "one hundred twenty-one trillion, six million, nine hundred twenty-five thousand, eight hundred fifty-one".