111100011210221 has 16 divisors (see below), whose sum is σ = 124989372648000. Its totient is φ = 97875275817600.

The previous prime is 111100011210127. The next prime is 111100011210239. The reversal of 111100011210221 is 122012110001111.

It is a cyclic number.

It is not a de Polignac number, because 111100011210221 - 2³⁰ = 111098937468397 is a prime.

It is a super-2 number, since 2×111100011210221² (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 = 111100011210196 and 111100011210205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111100011210281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 826582091 + ... + 826716488.

It is an arithmetic number, because the mean of its divisors is an integer number (7811835790500).

Almost surely, 2^{111100011210221} is an apocalyptic number.

111100011210221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111100011210221 is a deficient number, since it is larger than the sum of its proper divisors (13889361437779).

111100011210221 is a wasteful number, since it uses less digits than its factorization.

111100011210221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1653298780.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 111100011210221 its reverse (122012110001111), we get a palindrome (233112121211332).

The spelling of 111100011210221 in words is "one hundred eleven trillion, one hundred billion, eleven million, two hundred ten thousand, two hundred twenty-one".