20120222102221 has 8 divisors (see below), whose sum is σ = 20132680291200. Its totient is φ = 20107764822432.

The previous prime is 20120222102219. The next prime is 20120222102293. The reversal of 20120222102221 is 12220122202102.

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 20120222102221 - 2¹ = 20120222102219 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 (20120222102921) 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, 47081916 + ... + 47507338.

It is an arithmetic number, because the mean of its divisors is an integer number (2516585036400).

Almost surely, 2^{20120222102221} is an apocalyptic number.

It is an amenable number.

20120222102221 is a deficient number, since it is larger than the sum of its proper divisors (12458188979).

20120222102221 is a wasteful number, since it uses less digits than its factorization.

20120222102221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454595.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 20120222102221 its reverse (12220122202102), we get a palindrome (32340344304323).

The spelling of 20120222102221 in words is "twenty trillion, one hundred twenty billion, two hundred twenty-two million, one hundred two thousand, two hundred twenty-one".