111120102122221 has 8 divisors (see below), whose sum is σ = 113704463426400. Its totient is φ = 108535748676432.

The previous prime is 111120102122173. The next prime is 111120102122287. The reversal of 111120102122221 is 122221201021111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111120102122221 - 2¹¹ = 111120102120173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111120102123221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34368930 + ... + 37462828.

It is an arithmetic number, because the mean of its divisors is an integer number (14213057928300).

Almost surely, 2^{111120102122221} is an apocalyptic number.

It is an amenable number.

111120102122221 is a deficient number, since it is larger than the sum of its proper divisors (2584361304179).

111120102122221 is an equidigital number, since it uses as much as digits as its factorization.

111120102122221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3929195.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 111120102122221 its reverse (122221201021111), we get a palindrome (233341303143332).

The spelling of 111120102122221 in words is "one hundred eleven trillion, one hundred twenty billion, one hundred two million, one hundred twenty-two thousand, two hundred twenty-one".