121121215916707 has 2 divisors, whose sum is σ = 121121215916708. Its totient is φ = 121121215916706.

The previous prime is 121121215916683. The next prime is 121121215916711. The reversal of 121121215916707 is 707619512121121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121121215916707 - 2³⁵ = 121086856178339 is a prime.

It is not a weakly prime, because it can be changed into another prime (121121215916797) 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, 60560607958353 + 60560607958354.

It is an arithmetic number, because the mean of its divisors is an integer number (60560607958354).

Almost surely, 2^{121121215916707} is an apocalyptic number.

121121215916707 is a deficient number, since it is larger than the sum of its proper divisors (1).

121121215916707 is an equidigital number, since it uses as much as digits as its factorization.

121121215916707 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 105840, while the sum is 46.

The spelling of 121121215916707 in words is "one hundred twenty-one trillion, one hundred twenty-one billion, two hundred fifteen million, nine hundred sixteen thousand, seven hundred seven".