1212212201219 has 2 divisors, whose sum is σ = 1212212201220. Its totient is φ = 1212212201218.

The previous prime is 1212212201203. The next prime is 1212212201227. The reversal of 1212212201219 is 9121022122121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1212212201219 - 2⁴ = 1212212201203 is a prime.

It is a super-2 number, since 2×1212212201219² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1212212201269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606106100609 + 606106100610.

It is an arithmetic number, because the mean of its divisors is an integer number (606106100610).

Almost surely, 2^{1212212201219} is an apocalyptic number.

1212212201219 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212212201219 is an equidigital number, since it uses as much as digits as its factorization.

1212212201219 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 1212212201219 in words is "one trillion, two hundred twelve billion, two hundred twelve million, two hundred one thousand, two hundred nineteen".