22112222102021 has 8 divisors (see below), whose sum is σ = 22189456695744. Its totient is φ = 22035026830720.

The previous prime is 22112222101979. The next prime is 22112222102063. The reversal of 22112222102021 is 12020122221122.

It is an interprime number because it is at equal distance from previous prime (22112222101979) and next prime (22112222102063).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22112222102021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22112222101984 and 22112222102002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22112222102821) 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, 8703755 + ... + 10953528.

It is an arithmetic number, because the mean of its divisors is an integer number (2773682086968).

Almost surely, 2^{22112222102021} is an apocalyptic number.

It is an amenable number.

22112222102021 is a deficient number, since it is larger than the sum of its proper divisors (77234593723).

22112222102021 is a wasteful number, since it uses less digits than its factorization.

22112222102021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19661211.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 22112222102021 its reverse (12020122221122), we get a palindrome (34132344323143).

The spelling of 22112222102021 in words is "twenty-two trillion, one hundred twelve billion, two hundred twenty-two million, one hundred two thousand, twenty-one".