222102002112221 has 8 divisors (see below), whose sum is σ = 276906392243904. Its totient is φ = 173066495152320.

The previous prime is 222102002112197. The next prime is 222102002112251. The reversal of 222102002112221 is 122211200201222.

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

It is not a de Polignac number, because 222102002112221 - 2¹⁸ = 222102001850077 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222102002112193 and 222102002112202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222102002112251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1442220792860 + ... + 1442220793013.

It is an arithmetic number, because the mean of its divisors is an integer number (34613299030488).

Almost surely, 2^{222102002112221} is an apocalyptic number.

It is an amenable number.

222102002112221 is a deficient number, since it is larger than the sum of its proper divisors (54804390131683).

222102002112221 is a wasteful number, since it uses less digits than its factorization.

222102002112221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2884441585891.

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

Adding to 222102002112221 its reverse (122211200201222), we get a palindrome (344313202313443).

The spelling of 222102002112221 in words is "two hundred twenty-two trillion, one hundred two billion, two million, one hundred twelve thousand, two hundred twenty-one".