1102111100221 has 8 divisors (see below), whose sum is σ = 1117359430200. Its totient is φ = 1086926438400.

The previous prime is 1102111100213. The next prime is 1102111100243. The reversal of 1102111100221 is 1220011112011.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 136519904196 + 965591196025 = 369486^2 + 982645^2 .

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 1102111100221 - 2³ = 1102111100213 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 (1102111100281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15882180 + ... + 15951421.

It is an arithmetic number, because the mean of its divisors is an integer number (139669928775).

Almost surely, 2^{1102111100221} is an apocalyptic number.

It is an amenable number.

1102111100221 is a deficient number, since it is larger than the sum of its proper divisors (15248329979).

1102111100221 is an equidigital number, since it uses as much as digits as its factorization.

1102111100221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31834079.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1102111100221 its reverse (1220011112011), we get a palindrome (2322122212232).

The spelling of 1102111100221 in words is "one trillion, one hundred two billion, one hundred eleven million, one hundred thousand, two hundred twenty-one".