111101223321 has 40 divisors (see below), whose sum is σ = 183345782400. Its totient is φ = 66481702560.

The previous prime is 111101223307. The next prime is 111101223347. The reversal of 111101223321 is 123322101111.

111101223321 is a `hidden beast` number, since 11 + 110 + 1 + 223 + 321 = 666.

It is not a de Polignac number, because 111101223321 - 2¹³ = 111101215129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111101223294 and 111101223303.

It is not an unprimeable number, because it can be changed into a prime (111101223301) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 718806 + ... + 859583.

It is an arithmetic number, because the mean of its divisors is an integer number (4583644560).

Almost surely, 2^111101223321 is an apocalyptic number.

111101223321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111101223321 is a deficient number, since it is larger than the sum of its proper divisors (72244559079).

111101223321 is a wasteful number, since it uses less digits than its factorization.

111101223321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1578491 (or 1578482 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 111101223321 its reverse (123322101111), we get a palindrome (234423324432).

The spelling of 111101223321 in words is "one hundred eleven billion, one hundred one million, two hundred twenty-three thousand, three hundred twenty-one".