111011101000221 has 16 divisors (see below), whose sum is σ = 152032750326144. Its totient is φ = 71998887985344.

The previous prime is 111011101000103. The next prime is 111011101000279. The reversal of 111011101000221 is 122000101110111.

It is a de Polignac number, because none of the positive numbers 2^k-111011101000221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111011101000197 and 111011101000206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111011101080221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56760906 + ... + 58684091.

It is an arithmetic number, because the mean of its divisors is an integer number (9502046895384).

Almost surely, 2^{111011101000221} is an apocalyptic number.

It is an amenable number.

111011101000221 is a deficient number, since it is larger than the sum of its proper divisors (41021649325923).

111011101000221 is a wasteful number, since it uses less digits than its factorization.

111011101000221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115453700.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 111011101000221 its reverse (122000101110111), we get a palindrome (233011202110332).

The spelling of 111011101000221 in words is "one hundred eleven trillion, eleven billion, one hundred one million, two hundred twenty-one", and thus it is an aban number.