1101101120221 has 4 divisors (see below), whose sum is σ = 1106866047744. Its totient is φ = 1095336192700.

The previous prime is 1101101120201. The next prime is 1101101120237. The reversal of 1101101120221 is 1220211011011.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1101101120221 - 2²¹ = 1101099023069 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 (1101101120201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2882463475 + ... + 2882463856.

It is an arithmetic number, because the mean of its divisors is an integer number (276716511936).

Almost surely, 2^{1101101120221} is an apocalyptic number.

It is an amenable number.

1101101120221 is a deficient number, since it is larger than the sum of its proper divisors (5764927523).

1101101120221 is an equidigital number, since it uses as much as digits as its factorization.

1101101120221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5764927522.

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

Adding to 1101101120221 its reverse (1220211011011), we get a palindrome (2321312131232).

The spelling of 1101101120221 in words is "one trillion, one hundred one billion, one hundred one million, one hundred twenty thousand, two hundred twenty-one".