1101223211101 has 4 divisors (see below), whose sum is σ = 1185932688892. Its totient is φ = 1016513733312.

The previous prime is 1101223211057. The next prime is 1101223211111. The reversal of 1101223211101 is 1011123221011.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 125405223876 + 975817987225 = 354126^2 + 987835^2 .

It is a cyclic number.

It is not a de Polignac number, because 1101223211101 - 2¹⁵ = 1101223178333 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 (1101223211111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42354738876 + ... + 42354738901.

It is an arithmetic number, because the mean of its divisors is an integer number (296483172223).

Almost surely, 2^{1101223211101} is an apocalyptic number.

It is an amenable number.

1101223211101 is a deficient number, since it is larger than the sum of its proper divisors (84709477791).

1101223211101 is an equidigital number, since it uses as much as digits as its factorization.

1101223211101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84709477790.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 1101223211101 its reverse (1011123221011), we get a palindrome (2112346432112).

The spelling of 1101223211101 in words is "one trillion, one hundred one billion, two hundred twenty-three million, two hundred eleven thousand, one hundred one".