111112221219 has 4 divisors (see below), whose sum is σ = 148149628296. Its totient is φ = 74074814144.

The previous prime is 111112221193. The next prime is 111112221271. The reversal of 111112221219 is 912122211111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 111112221219 - 2¹⁶ = 111112155683 is a prime.

It is a super-2 number, since 2×111112221219² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (111112221299) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18518703534 + ... + 18518703539.

It is an arithmetic number, because the mean of its divisors is an integer number (37037407074).

Almost surely, 2^111112221219 is an apocalyptic number.

111112221219 is a deficient number, since it is larger than the sum of its proper divisors (37037407077).

111112221219 is an equidigital number, since it uses as much as digits as its factorization.

111112221219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37037407076.

The product of its digits is 144, while the sum is 24.

The spelling of 111112221219 in words is "one hundred eleven billion, one hundred twelve million, two hundred twenty-one thousand, two hundred nineteen".