111206420219 has 2 divisors, whose sum is σ = 111206420220. Its totient is φ = 111206420218.

The previous prime is 111206420207. The next prime is 111206420257. The reversal of 111206420219 is 912024602111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111206420219 - 2³⁶ = 42486943483 is a prime.

It is a super-2 number, since 2×111206420219² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111206420191 and 111206420200.

It is not a weakly prime, because it can be changed into another prime (111206420119) 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, 55603210109 + 55603210110.

It is an arithmetic number, because the mean of its divisors is an integer number (55603210110).

Almost surely, 2^111206420219 is an apocalyptic number.

111206420219 is a deficient number, since it is larger than the sum of its proper divisors (1).

111206420219 is an equidigital number, since it uses as much as digits as its factorization.

111206420219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 29.

The spelling of 111206420219 in words is "one hundred eleven billion, two hundred six million, four hundred twenty thousand, two hundred nineteen".