22100021100001 has 4 divisors (see below), whose sum is σ = 23800022723092. Its totient is φ = 20400019476912.

The previous prime is 22100021099993. The next prime is 22100021100067. The reversal of 22100021100001 is 10000112000122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 904494200401 + 21195526899600 = 951049^2 + 4603860^2 .

It is a cyclic number.

It is not a de Polignac number, because 22100021100001 - 2³ = 22100021099993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22100021100071) 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 3 ways as a sum of consecutive naturals, for example, 850000811526 + ... + 850000811551.

It is an arithmetic number, because the mean of its divisors is an integer number (5950005680773).

Almost surely, 2^{22100021100001} is an apocalyptic number.

It is an amenable number.

22100021100001 is a deficient number, since it is larger than the sum of its proper divisors (1700001623091).

22100021100001 is a wasteful number, since it uses less digits than its factorization.

22100021100001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1700001623090.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 22100021100001 its reverse (10000112000122), we get a palindrome (32100133100123).

The spelling of 22100021100001 in words is "twenty-two trillion, one hundred billion, twenty-one million, one hundred thousand, one".