121021221200219 has 2 divisors, whose sum is σ = 121021221200220. Its totient is φ = 121021221200218.

The previous prime is 121021221200213. The next prime is 121021221200227. The reversal of 121021221200219 is 912002122120121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121021221200219 - 2⁴ = 121021221200203 is a prime.

It is a super-2 number, since 2×121021221200219² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121021221200213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60510610600109 + 60510610600110.

It is an arithmetic number, because the mean of its divisors is an integer number (60510610600110).

Almost surely, 2^{121021221200219} is an apocalyptic number.

121021221200219 is a deficient number, since it is larger than the sum of its proper divisors (1).

121021221200219 is an equidigital number, since it uses as much as digits as its factorization.

121021221200219 is an evil number, because the sum of its binary digits is even.

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

The spelling of 121021221200219 in words is "one hundred twenty-one trillion, twenty-one billion, two hundred twenty-one million, two hundred thousand, two hundred nineteen".