111011212121219 has 12 divisors (see below), whose sum is σ = 122155408036200. Its totient is φ = 100595972530944.

The previous prime is 111011212121209. The next prime is 111011212121291. The reversal of 111011212121219 is 912121212110111.

It is not a de Polignac number, because 111011212121219 - 2¹⁶ = 111011212055683 is a prime.

It is a super-2 number, since 2×111011212121219² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111011212121209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5522386334 + ... + 5522406435.

It is an arithmetic number, because the mean of its divisors is an integer number (10179617336350).

Almost surely, 2^{111011212121219} is an apocalyptic number.

111011212121219 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

111011212121219 is a deficient number, since it is larger than the sum of its proper divisors (11144195914981).

111011212121219 is a wasteful number, since it uses less digits than its factorization.

111011212121219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11044792834 (or 11044792811 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 26.

The spelling of 111011212121219 in words is "one hundred eleven trillion, eleven billion, two hundred twelve million, one hundred twenty-one thousand, two hundred nineteen".