1101220221101 has 64 divisors (see below), whose sum is σ = 1512457175040. Its totient is φ = 774114485760.

The previous prime is 1101220221061. The next prime is 1101220221107. The reversal of 1101220221101 is 1011220221011.

It is a de Polignac number, because none of the positive numbers 2^k-1101220221101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101220221107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8452865 + ... + 8582153.

It is an arithmetic number, because the mean of its divisors is an integer number (23632143360).

Almost surely, 2^{1101220221101} is an apocalyptic number.

1101220221101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1101220221101 is a deficient number, since it is larger than the sum of its proper divisors (411236953939).

1101220221101 is a wasteful number, since it uses less digits than its factorization.

1101220221101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129514.

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

Adding to 1101220221101 its reverse (1011220221011), we get a palindrome (2112440442112).

The spelling of 1101220221101 in words is "one trillion, one hundred one billion, two hundred twenty million, two hundred twenty-one thousand, one hundred one".