1110220121111 has 4 divisors (see below), whose sum is σ = 1111117632552. Its totient is φ = 1109322609672.

The previous prime is 1110220121093. The next prime is 1110220121161. The reversal of 1110220121111 is 1111210220111.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1110220121111 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 (1110220121161) 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, 448753865 + ... + 448756338.

It is an arithmetic number, because the mean of its divisors is an integer number (277779408138).

Almost surely, 2^{1110220121111} is an apocalyptic number.

1110220121111 is a deficient number, since it is larger than the sum of its proper divisors (897511441).

1110220121111 is an equidigital number, since it uses as much as digits as its factorization.

1110220121111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 897511440.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 1110220121111 its reverse (1111210220111), we get a palindrome (2221430341222).

The spelling of 1110220121111 in words is "one trillion, one hundred ten billion, two hundred twenty million, one hundred twenty-one thousand, one hundred eleven".