111211012220219 has 2 divisors, whose sum is σ = 111211012220220. Its totient is φ = 111211012220218.

The previous prime is 111211012220183. The next prime is 111211012220261. The reversal of 111211012220219 is 912022210112111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111211012220219 - 2³² = 111206717252923 is a prime.

It is a super-2 number, since 2×111211012220219² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (111217012220219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55605506110109 + 55605506110110.

It is an arithmetic number, because the mean of its divisors is an integer number (55605506110110).

Almost surely, 2^{111211012220219} is an apocalyptic number.

111211012220219 is a deficient number, since it is larger than the sum of its proper divisors (1).

111211012220219 is an equidigital number, since it uses as much as digits as its factorization.

111211012220219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 26.

The spelling of 111211012220219 in words is "one hundred eleven trillion, two hundred eleven billion, twelve million, two hundred twenty thousand, two hundred nineteen".