121220120320007 has 2 divisors, whose sum is σ = 121220120320008. Its totient is φ = 121220120320006.

The previous prime is 121220120320001. The next prime is 121220120320093. The reversal of 121220120320007 is 700023021022121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121220120320007 - 2⁸ = 121220120319751 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121220120320001) 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, 60610060160003 + 60610060160004.

It is an arithmetic number, because the mean of its divisors is an integer number (60610060160004).

Almost surely, 2^{121220120320007} is an apocalyptic number.

121220120320007 is a deficient number, since it is larger than the sum of its proper divisors (1).

121220120320007 is an equidigital number, since it uses as much as digits as its factorization.

121220120320007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 23.

Adding to 121220120320007 its reverse (700023021022121), we get a palindrome (821243141342128).

The spelling of 121220120320007 in words is "one hundred twenty-one trillion, two hundred twenty billion, one hundred twenty million, three hundred twenty thousand, seven".