121002021221219 has 2 divisors, whose sum is σ = 121002021221220. Its totient is φ = 121002021221218.

The previous prime is 121002021221161. The next prime is 121002021221251. The reversal of 121002021221219 is 912122120200121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121002021221219 - 2²⁸ = 121001752785763 is a prime.

It is a super-2 number, since 2×121002021221219² (a number of 29 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (121002021221299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60501010610609 + 60501010610610.

It is an arithmetic number, because the mean of its divisors is an integer number (60501010610610).

Almost surely, 2^{121002021221219} is an apocalyptic number.

121002021221219 is a deficient number, since it is larger than the sum of its proper divisors (1).

121002021221219 is an equidigital number, since it uses as much as digits as its factorization.

121002021221219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 26.

The spelling of 121002021221219 in words is "one hundred twenty-one trillion, two billion, twenty-one million, two hundred twenty-one thousand, two hundred nineteen".