121996120027 has 2 divisors, whose sum is σ = 121996120028. Its totient is φ = 121996120026.

The previous prime is 121996120019. The next prime is 121996120033. The reversal of 121996120027 is 720021699121.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121996120027 - 2³ = 121996120019 is a prime.

It is not a weakly prime, because it can be changed into another prime (121996120007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60998060013 + 60998060014.

It is an arithmetic number, because the mean of its divisors is an integer number (60998060014).

Almost surely, 2^121996120027 is an apocalyptic number.

121996120027 is a deficient number, since it is larger than the sum of its proper divisors (1).

121996120027 is an equidigital number, since it uses as much as digits as its factorization.

121996120027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 40.

The spelling of 121996120027 in words is "one hundred twenty-one billion, nine hundred ninety-six million, one hundred twenty thousand, twenty-seven".