22222102120221 has 8 divisors (see below), whose sum is σ = 29630431081984. Its totient is φ = 14814253952640.

The previous prime is 22222102120213. The next prime is 22222102120243. The reversal of 22222102120221 is 12202120122222.

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

It is not a de Polignac number, because 22222102120221 - 2³ = 22222102120213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22222102100221) 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, 120090685 + ... + 120275586.

It is an arithmetic number, because the mean of its divisors is an integer number (3703803885248).

Almost surely, 2^{22222102120221} is an apocalyptic number.

It is an amenable number.

22222102120221 is a deficient number, since it is larger than the sum of its proper divisors (7408328961763).

22222102120221 is a wasteful number, since it uses less digits than its factorization.

22222102120221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240397091.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 22222102120221 its reverse (12202120122222), we get a palindrome (34424222242443).

The spelling of 22222102120221 in words is "twenty-two trillion, two hundred twenty-two billion, one hundred two million, one hundred twenty thousand, two hundred twenty-one".