121021210202219 has 2 divisors, whose sum is σ = 121021210202220. Its totient is φ = 121021210202218.

The previous prime is 121021210202147. The next prime is 121021210202231. The reversal of 121021210202219 is 912202012120121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121021210202219 - 2⁸ = 121021210201963 is a prime.

It is a super-3 number, since 3×121021210202219³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (121021210202119) 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, 60510605101109 + 60510605101110.

It is an arithmetic number, because the mean of its divisors is an integer number (60510605101110).

Almost surely, 2^{121021210202219} is an apocalyptic number.

121021210202219 is a deficient number, since it is larger than the sum of its proper divisors (1).

121021210202219 is an equidigital number, since it uses as much as digits as its factorization.

121021210202219 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 121021210202219 in words is "one hundred twenty-one trillion, twenty-one billion, two hundred ten million, two hundred two thousand, two hundred nineteen".