111120220012221 has 48 divisors (see below), whose sum is σ = 183671252593920. Its totient is φ = 63416047495680.

The previous prime is 111120220012183. The next prime is 111120220012253. The reversal of 111120220012221 is 122210022021111.

111120220012221 is a `hidden beast` number, since 111 + 120 + 2 + 200 + 12 + 221 = 666.

It is not a de Polignac number, because 111120220012221 - 2⁴³ = 102324126990013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111120220012194 and 111120220012203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111120220011221) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 394430016 + ... + 394711638.

It is an arithmetic number, because the mean of its divisors is an integer number (3826484429040).

Almost surely, 2^{111120220012221} is an apocalyptic number.

It is an amenable number.

111120220012221 is a deficient number, since it is larger than the sum of its proper divisors (72551032581699).

111120220012221 is a wasteful number, since it uses less digits than its factorization.

111120220012221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289626 (or 289623 counting only the distinct ones).

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

Adding to 111120220012221 its reverse (122210022021111), we get a palindrome (233330242033332).

The spelling of 111120220012221 in words is "one hundred eleven trillion, one hundred twenty billion, two hundred twenty million, twelve thousand, two hundred twenty-one".