111220219 has 8 divisors (see below), whose sum is σ = 125245440. Its totient is φ = 97847400.

The previous prime is 111220217. The next prime is 111220223. The reversal of 111220219 is 912022111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111220219 - 2¹ = 111220217 is a prime.

It is a super-2 number, since 2×111220219² = 24739874228815922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111220196 and 111220205.

It is not an unprimeable number, because it can be changed into a prime (111220217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162739 + ... + 163420.

It is an arithmetic number, because the mean of its divisors is an integer number (15655680).

Almost surely, 2^111220219 is an apocalyptic number.

111220219 is a deficient number, since it is larger than the sum of its proper divisors (14025221).

111220219 is a wasteful number, since it uses less digits than its factorization.

111220219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326201.

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 111220219 is about 10546.0997055784. The cubic root of 111220219 is about 480.9071660952.

The spelling of 111220219 in words is "one hundred eleven million, two hundred twenty thousand, two hundred nineteen".