1212120321127 has 2 divisors, whose sum is σ = 1212120321128. Its totient is φ = 1212120321126.

The previous prime is 1212120321059. The next prime is 1212120321161. The reversal of 1212120321127 is 7211230212121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1212120321127 - 2³⁹ = 662364507239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1212120321187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606060160563 + 606060160564.

It is an arithmetic number, because the mean of its divisors is an integer number (606060160564).

Almost surely, 2^{1212120321127} is an apocalyptic number.

1212120321127 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212120321127 is an equidigital number, since it uses as much as digits as its factorization.

1212120321127 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 25.

Adding to 1212120321127 its reverse (7211230212121), we get a palindrome (8423350533248).

The spelling of 1212120321127 in words is "one trillion, two hundred twelve billion, one hundred twenty million, three hundred twenty-one thousand, one hundred twenty-seven".