1112021022221 has 8 divisors (see below), whose sum is σ = 1124955219360. Its totient is φ = 1099157311728.

The previous prime is 1112021022197. The next prime is 1112021022247. The reversal of 1112021022221 is 1222201202111.

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

It is a cyclic number.

It is not a de Polignac number, because 1112021022221 - 2⁶ = 1112021022157 is a prime.

It is a super-2 number, since 2×1112021022221² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1112021022221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112021022421) 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 7 ways as a sum of consecutive naturals, for example, 17589926 + ... + 17653031.

It is an arithmetic number, because the mean of its divisors is an integer number (140619402420).

Almost surely, 2^{1112021022221} is an apocalyptic number.

It is an amenable number.

1112021022221 is a deficient number, since it is larger than the sum of its proper divisors (12934197139).

1112021022221 is a wasteful number, since it uses less digits than its factorization.

1112021022221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35243323.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1112021022221 its reverse (1222201202111), we get a palindrome (2334222224332).

The spelling of 1112021022221 in words is "one trillion, one hundred twelve billion, twenty-one million, twenty-two thousand, two hundred twenty-one".