111472219 has 2 divisors, whose sum is σ = 111472220. Its totient is φ = 111472218.

The previous prime is 111472217. The next prime is 111472243. The reversal of 111472219 is 912274111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111472219 - 2¹ = 111472217 is a prime.

It is a super-2 number, since 2×111472219² = 24852111217567922, which contains 22 as substring.

Together with 111472217, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (111472217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55736109 + 55736110.

It is an arithmetic number, because the mean of its divisors is an integer number (55736110).

Almost surely, 2^111472219 is an apocalyptic number.

111472219 is a deficient number, since it is larger than the sum of its proper divisors (1).

111472219 is an equidigital number, since it uses as much as digits as its factorization.

111472219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1008, while the sum is 28.

The square root of 111472219 is about 10558.0404905456. The cubic root of 111472219 is about 481.2701012799.

It can be divided in two parts, 11147 and 2219, that added together give a triangular number (13366 = T₁₆₃).

The spelling of 111472219 in words is "one hundred eleven million, four hundred seventy-two thousand, two hundred nineteen".