22221102212101 has 16 divisors (see below), whose sum is σ = 24976082186496. Its totient is φ = 19615875117696.

The previous prime is 22221102212077. The next prime is 22221102212107. The reversal of 22221102212101 is 10121220112222.

It is not a de Polignac number, because 22221102212101 - 2¹¹ = 22221102210053 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 (22221102212107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6319665 + ... + 9185878.

It is an arithmetic number, because the mean of its divisors is an integer number (1561005136656).

Almost surely, 2^{22221102212101} is an apocalyptic number.

It is an amenable number.

22221102212101 is a deficient number, since it is larger than the sum of its proper divisors (2754979974395).

22221102212101 is a wasteful number, since it uses less digits than its factorization.

22221102212101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15510372.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 22221102212101 its reverse (10121220112222), we get a palindrome (32342322324323).

The spelling of 22221102212101 in words is "twenty-two trillion, two hundred twenty-one billion, one hundred two million, two hundred twelve thousand, one hundred one".