111120222100221 has 12 divisors (see below), whose sum is σ = 163227444893760. Its totient is φ = 72824552336520.

The previous prime is 111120222100213. The next prime is 111120222100229. The reversal of 111120222100221 is 122001222021111.

111120222100221 is a `hidden beast` number, since 1 + 1 + 1 + 120 + 222 + 100 + 221 = 666.

It is an interprime number because it is at equal distance from previous prime (111120222100213) and next prime (111120222100229).

It is not a de Polignac number, because 111120222100221 - 2³ = 111120222100213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111120222100194 and 111120222100203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111120222100229) 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, 104632976965 + ... + 104632978026.

It is an arithmetic number, because the mean of its divisors is an integer number (13602287074480).

Almost surely, 2^{111120222100221} is an apocalyptic number.

It is an amenable number.

111120222100221 is a deficient number, since it is larger than the sum of its proper divisors (52107222793539).

111120222100221 is a wasteful number, since it uses less digits than its factorization.

111120222100221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209265955056 (or 209265955053 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 111120222100221 its reverse (122001222021111), we get a palindrome (233121444121332).

The spelling of 111120222100221 in words is "one hundred eleven trillion, one hundred twenty billion, two hundred twenty-two million, one hundred thousand, two hundred twenty-one".