1112011212221 has 8 divisors (see below), whose sum is σ = 1368629184384. Its totient is φ = 879833046960.

The previous prime is 1112011212209. The next prime is 1112011212251. The reversal of 1112011212221 is 1222121102111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1112011212221 - 2¹⁴ = 1112011195837 is a prime.

It is a super-2 number, since 2×1112011212221² (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 1112011212221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112011212251) 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 7 ways as a sum of consecutive naturals, for example, 6109951625 + ... + 6109951806.

It is an arithmetic number, because the mean of its divisors is an integer number (171078648048).

Almost surely, 2^{1112011212221} is an apocalyptic number.

It is an amenable number.

1112011212221 is a deficient number, since it is larger than the sum of its proper divisors (256617972163).

1112011212221 is a wasteful number, since it uses less digits than its factorization.

1112011212221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12219903451.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 1112011212221 its reverse (1222121102111), we get a palindrome (2334132314332).

The spelling of 1112011212221 in words is "one trillion, one hundred twelve billion, eleven million, two hundred twelve thousand, two hundred twenty-one".