1212100112219 has 2 divisors, whose sum is σ = 1212100112220. Its totient is φ = 1212100112218.

The previous prime is 1212100112191. The next prime is 1212100112227. The reversal of 1212100112219 is 9122110012121.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1212100112219 - 2¹⁶ = 1212100046683 is a prime.

It is a super-2 number, since 2×1212100112219² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1212100112194 and 1212100112203.

It is not a weakly prime, because it can be changed into another prime (1212100112299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606050056109 + 606050056110.

It is an arithmetic number, because the mean of its divisors is an integer number (606050056110).

Almost surely, 2^{1212100112219} is an apocalyptic number.

1212100112219 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212100112219 is an equidigital number, since it uses as much as digits as its factorization.

1212100112219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 23.

The spelling of 1212100112219 in words is "one trillion, two hundred twelve billion, one hundred million, one hundred twelve thousand, two hundred nineteen".