111020022110221 has 4 divisors (see below), whose sum is σ = 126880025268832. Its totient is φ = 95160018951612.

The previous prime is 111020022110197. The next prime is 111020022110269. The reversal of 111020022110221 is 122011220020111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 111020022110221 - 2⁹ = 111020022109709 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111020022110195 and 111020022110204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111020022110321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7930001579295 + ... + 7930001579308.

It is an arithmetic number, because the mean of its divisors is an integer number (31720006317208).

Almost surely, 2^{111020022110221} is an apocalyptic number.

It is an amenable number.

111020022110221 is a deficient number, since it is larger than the sum of its proper divisors (15860003158611).

111020022110221 is an equidigital number, since it uses as much as digits as its factorization.

111020022110221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15860003158610.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 111020022110221 its reverse (122011220020111), we get a palindrome (233031242130332).

The spelling of 111020022110221 in words is "one hundred eleven trillion, twenty billion, twenty-two million, one hundred ten thousand, two hundred twenty-one".