121113220219 has 2 divisors, whose sum is σ = 121113220220. Its totient is φ = 121113220218.

The previous prime is 121113220199. The next prime is 121113220259. The reversal of 121113220219 is 912022311121.

It is a weak prime.

It is an emirp because it is prime and its reverse (912022311121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121113220219 - 2⁹ = 121113219707 is a prime.

It is a super-2 number, since 2×121113220219² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121113220193 and 121113220202.

It is not a weakly prime, because it can be changed into another prime (121113220259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60556610109 + 60556610110.

It is an arithmetic number, because the mean of its divisors is an integer number (60556610110).

Almost surely, 2^121113220219 is an apocalyptic number.

121113220219 is a deficient number, since it is larger than the sum of its proper divisors (1).

121113220219 is an equidigital number, since it uses as much as digits as its factorization.

121113220219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 25.

The spelling of 121113220219 in words is "one hundred twenty-one billion, one hundred thirteen million, two hundred twenty thousand, two hundred nineteen".