121200100222219 has 2 divisors, whose sum is σ = 121200100222220. Its totient is φ = 121200100222218.

The previous prime is 121200100222177. The next prime is 121200100222241. The reversal of 121200100222219 is 912222001002121.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121200100222219 is a prime.

It is a super-2 number, since 2×121200100222219² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121200100222193 and 121200100222202.

It is not a weakly prime, because it can be changed into another prime (121200100622219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60600050111109 + 60600050111110.

It is an arithmetic number, because the mean of its divisors is an integer number (60600050111110).

Almost surely, 2^{121200100222219} is an apocalyptic number.

121200100222219 is a deficient number, since it is larger than the sum of its proper divisors (1).

121200100222219 is an equidigital number, since it uses as much as digits as its factorization.

121200100222219 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 25.

The spelling of 121200100222219 in words is "one hundred twenty-one trillion, two hundred billion, one hundred million, two hundred twenty-two thousand, two hundred nineteen".