111010100221 has 8 divisors (see below), whose sum is σ = 112364300160. Its totient is φ = 109656298752.

The previous prime is 111010100219. The next prime is 111010100329. The reversal of 111010100221 is 122001010111.

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 111010100221 - 2¹ = 111010100219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111010100198 and 111010100207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111010110221) 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, 481501 + ... + 673693.

It is an arithmetic number, because the mean of its divisors is an integer number (14045537520).

Almost surely, 2^111010100221 is an apocalyptic number.

It is an amenable number.

111010100221 is a deficient number, since it is larger than the sum of its proper divisors (1354199939).

111010100221 is an equidigital number, since it uses as much as digits as its factorization.

111010100221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199235.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 111010100221 its reverse (122001010111), we get a palindrome (233011110332).

The spelling of 111010100221 in words is "one hundred eleven billion, ten million, one hundred thousand, two hundred twenty-one".