1201212121259 has 2 divisors, whose sum is σ = 1201212121260. Its totient is φ = 1201212121258.

The previous prime is 1201212121237. The next prime is 1201212121303. The reversal of 1201212121259 is 9521212121021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1201212121259 - 2⁸ = 1201212121003 is a prime.

It is not a weakly prime, because it can be changed into another prime (1201212120259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600606060629 + 600606060630.

It is an arithmetic number, because the mean of its divisors is an integer number (600606060630).

Almost surely, 2^{1201212121259} is an apocalyptic number.

1201212121259 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201212121259 is an equidigital number, since it uses as much as digits as its factorization.

1201212121259 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 29.

The spelling of 1201212121259 in words is "one trillion, two hundred one billion, two hundred twelve million, one hundred twenty-one thousand, two hundred fifty-nine".