222111101200021 has 8 divisors (see below), whose sum is σ = 242354213931744. Its totient is φ = 201876520875120.

The previous prime is 222111101200019. The next prime is 222111101200061. The reversal of 222111101200021 is 120002101111222.

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 222111101200021 - 2¹ = 222111101200019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222111101199968 and 222111101200004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222111101200061) 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, 2133047271 + ... + 2133151396.

It is an arithmetic number, because the mean of its divisors is an integer number (30294276741468).

Almost surely, 2^{222111101200021} is an apocalyptic number.

It is an amenable number.

222111101200021 is a deficient number, since it is larger than the sum of its proper divisors (20243112731723).

222111101200021 is a wasteful number, since it uses less digits than its factorization.

222111101200021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4266203411.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 222111101200021 its reverse (120002101111222), we get a palindrome (342113202311243).

The spelling of 222111101200021 in words is "two hundred twenty-two trillion, one hundred eleven billion, one hundred one million, two hundred thousand, twenty-one".