1100221021111 has 8 divisors (see below), whose sum is σ = 1138197183104. Its totient is φ = 1062400181760.

The previous prime is 1100221021093. The next prime is 1100221021139. The reversal of 1100221021111 is 1111201220011.

It is a happy number.

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 1100221021111 - 2²¹ = 1100218923959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1100221021091 and 1100221021100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100221021411) 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, 38816250 + ... + 38844583.

It is an arithmetic number, because the mean of its divisors is an integer number (142274647888).

Almost surely, 2^{1100221021111} is an apocalyptic number.

1100221021111 is a deficient number, since it is larger than the sum of its proper divisors (37976161993).

1100221021111 is an equidigital number, since it uses as much as digits as its factorization.

1100221021111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77661321.

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

Adding to 1100221021111 its reverse (1111201220011), we get a palindrome (2211422241122).

The spelling of 1100221021111 in words is "one trillion, one hundred billion, two hundred twenty-one million, twenty-one thousand, one hundred eleven".