1212211012219 has 2 divisors, whose sum is σ = 1212211012220. Its totient is φ = 1212211012218.

The previous prime is 1212211012183. The next prime is 1212211012273. The reversal of 1212211012219 is 9122101122121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1212211012219 - 2⁹ = 1212211011707 is a prime.

It is a super-2 number, since 2×1212211012219² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1212211012193 and 1212211012202.

It is not a weakly prime, because it can be changed into another prime (1212211042219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606105506109 + 606105506110.

It is an arithmetic number, because the mean of its divisors is an integer number (606105506110).

Almost surely, 2^{1212211012219} is an apocalyptic number.

1212211012219 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212211012219 is an equidigital number, since it uses as much as digits as its factorization.

1212211012219 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 25.

The spelling of 1212211012219 in words is "one trillion, two hundred twelve billion, two hundred eleven million, twelve thousand, two hundred nineteen".