1120023111221 has 16 divisors (see below), whose sum is σ = 1285311742848. Its totient is φ = 956056920000.

The previous prime is 1120023111203. The next prime is 1120023111227. The reversal of 1120023111221 is 1221113200211.

It is a happy number.

It is not a de Polignac number, because 1120023111221 - 2³⁴ = 1102843242037 is a prime.

It is a super-2 number, since 2×1120023111221² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1120023111221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120023111227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13207271 + ... + 13291803.

It is an arithmetic number, because the mean of its divisors is an integer number (80331983928).

Almost surely, 2^{1120023111221} is an apocalyptic number.

It is an amenable number.

1120023111221 is a deficient number, since it is larger than the sum of its proper divisors (165288631627).

1120023111221 is an equidigital number, since it uses as much as digits as its factorization.

1120023111221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92332.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 1120023111221 its reverse (1221113200211), we get a palindrome (2341136311432).

It can be divided in two parts, 112002 and 3111221, that added together give a palindrome (3223223).

The spelling of 1120023111221 in words is "one trillion, one hundred twenty billion, twenty-three million, one hundred eleven thousand, two hundred twenty-one".