20110222222221 has 8 divisors (see below), whose sum is σ = 26831710302880. Its totient is φ = 13397774478192.

The previous prime is 20110222222219. The next prime is 20110222222301. The reversal of 20110222222221 is 12222222201102.

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

It is not a de Polignac number, because 20110222222221 - 2¹ = 20110222222219 is a prime.

It is a super-3 number, since 3×20110222222221³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20110222222121) 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, 2260078966 + ... + 2260087863.

It is an arithmetic number, because the mean of its divisors is an integer number (3353963787860).

Almost surely, 2^{20110222222221} is an apocalyptic number.

It is an amenable number.

20110222222221 is a deficient number, since it is larger than the sum of its proper divisors (6721488080659).

20110222222221 is a wasteful number, since it uses less digits than its factorization.

20110222222221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4520168315.

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

Adding to 20110222222221 its reverse (12222222201102), we get a palindrome (32332444423323).

The spelling of 20110222222221 in words is "twenty trillion, one hundred ten billion, two hundred twenty-two million, two hundred twenty-two thousand, two hundred twenty-one".