22120001102221 has 16 divisors (see below), whose sum is σ = 24675488510400. Its totient is φ = 19659042835200.

The previous prime is 22120001102179. The next prime is 22120001102249. The reversal of 22120001102221 is 12220110002122.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 22120001102221 - 2¹⁷ = 22120000971149 is a prime.

It is a super-2 number, since 2×22120001102221² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22120001102195 and 22120001102204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22120001102281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94035036 + ... + 94269973.

It is an arithmetic number, because the mean of its divisors is an integer number (1542218031900).

Almost surely, 2^{22120001102221} is an apocalyptic number.

It is an amenable number.

22120001102221 is a deficient number, since it is larger than the sum of its proper divisors (2555487408179).

22120001102221 is a wasteful number, since it uses less digits than its factorization.

22120001102221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188305260.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22120001102221 its reverse (12220110002122), we get a palindrome (34340111104343).

It can be divided in two parts, 22120001 and 102221, that added together give a palindrome (22222222).

The spelling of 22120001102221 in words is "twenty-two trillion, one hundred twenty billion, one million, one hundred two thousand, two hundred twenty-one".