1101101220221 has 8 divisors (see below), whose sum is σ = 1165885680960. Its totient is φ = 1036318292928.

The previous prime is 1101101220217. The next prime is 1101101220251. The reversal of 1101101220221 is 1220221011011.

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

It is not a de Polignac number, because 1101101220221 - 2² = 1101101220217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1101101220196 and 1101101220205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101101220251) 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, 1308320 + ... + 1978358.

It is an arithmetic number, because the mean of its divisors is an integer number (145735710120).

Almost surely, 2^{1101101220221} is an apocalyptic number.

It is an amenable number.

1101101220221 is a deficient number, since it is larger than the sum of its proper divisors (64784460739).

1101101220221 is an equidigital number, since it uses as much as digits as its factorization.

1101101220221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766723.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1101101220221 its reverse (1220221011011), we get a palindrome (2321322231232).

It can be divided in two parts, 110110 and 1220221, that added together give a palindrome (1330331).

The spelling of 1101101220221 in words is "one trillion, one hundred one billion, one hundred one million, two hundred twenty thousand, two hundred twenty-one".