1100221211021 has 8 divisors (see below), whose sum is σ = 1187645086080. Its totient is φ = 1016096350192.

The previous prime is 1100221211009. The next prime is 1100221211041. The reversal of 1100221211021 is 1201121220011.

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 1100221211021 - 2³⁰ = 1099147469197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1100221210987 and 1100221211005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100221211041) 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, 824752865 + ... + 824754198.

It is an arithmetic number, because the mean of its divisors is an integer number (148455635760).

Almost surely, 2^{1100221211021} is an apocalyptic number.

It is an amenable number.

1100221211021 is a deficient number, since it is larger than the sum of its proper divisors (87423875059).

1100221211021 is a wasteful number, since it uses less digits than its factorization.

1100221211021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1649507115.

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

Adding to 1100221211021 its reverse (1201121220011), we get a palindrome (2301342431032).

The spelling of 1100221211021 in words is "one trillion, one hundred billion, two hundred twenty-one million, two hundred eleven thousand, twenty-one".