111221232211019 has 24 divisors (see below), whose sum is σ = 129725572078080. Its totient is φ = 95077876907664.

The previous prime is 111221232210997. The next prime is 111221232211027. The reversal of 111221232211019 is 910112232122111.

It is not a de Polignac number, because 111221232211019 - 2³² = 111216937243723 is a prime.

It is a super-2 number, since 2×111221232211019² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111221232210982 and 111221232211000.

It is not an unprimeable number, because it can be changed into a prime (111221232211069) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53685872 + ... + 55719074.

It is an arithmetic number, because the mean of its divisors is an integer number (5405232169920).

Almost surely, 2^{111221232211019} is an apocalyptic number.

111221232211019 is a deficient number, since it is larger than the sum of its proper divisors (18504339867061).

111221232211019 is a wasteful number, since it uses less digits than its factorization.

111221232211019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2036199 (or 2036192 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 29.

The spelling of 111221232211019 in words is "one hundred eleven trillion, two hundred twenty-one billion, two hundred thirty-two million, two hundred eleven thousand, nineteen".