1112020011221 has 16 divisors (see below), whose sum is σ = 1283997287808. Its totient is φ = 943329912000.

The previous prime is 1112020011203. The next prime is 1112020011251. The reversal of 1112020011221 is 1221100202111.

It is a de Polignac number, because none of the positive numbers 2^k-1112020011221 is a prime.

It is a super-3 number, since 3×1112020011221³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1112020011196 and 1112020011205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112020011251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1378391 + ... + 2030763.

It is an arithmetic number, because the mean of its divisors is an integer number (80249830488).

Almost surely, 2^{1112020011221} is an apocalyptic number.

It is an amenable number.

1112020011221 is a deficient number, since it is larger than the sum of its proper divisors (171977276587).

1112020011221 is a wasteful number, since it uses less digits than its factorization.

1112020011221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654892.

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

Adding to 1112020011221 its reverse (1221100202111), we get a palindrome (2333120213332).

The spelling of 1112020011221 in words is "one trillion, one hundred twelve billion, twenty million, eleven thousand, two hundred twenty-one".