1100221233221 has 16 divisors (see below), whose sum is σ = 1203627522240. Its totient is φ = 997380276480.

The previous prime is 1100221233211. The next prime is 1100221233227. The reversal of 1100221233221 is 1223321220011.

It is a cyclic number.

It is not a de Polignac number, because 1100221233221 - 2⁶ = 1100221233157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1100221233193 and 1100221233202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100221233227) 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, 26314685 + ... + 26356461.

It is an arithmetic number, because the mean of its divisors is an integer number (75226720140).

Almost surely, 2^{1100221233221} is an apocalyptic number.

1100221233221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1100221233221 is a deficient number, since it is larger than the sum of its proper divisors (103406289019).

1100221233221 is a wasteful number, since it uses less digits than its factorization.

1100221233221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48484.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1100221233221 its reverse (1223321220011), we get a palindrome (2323542453232).

The spelling of 1100221233221 in words is "one trillion, one hundred billion, two hundred twenty-one million, two hundred thirty-three thousand, two hundred twenty-one".