22200101110021 has 4 divisors (see below), whose sum is σ = 22279105028844. Its totient is φ = 22121097191200.

The previous prime is 22200101110003. The next prime is 22200101110073. The reversal of 22200101110021 is 12001110100222.

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 18561354107521 + 3638747002500 = 4308289^2 + 1907550^2 .

It is a cyclic number.

It is not a de Polignac number, because 22200101110021 - 2⁹ = 22200101109509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22200101109983 and 22200101110010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22200101180021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39501958990 + ... + 39501959551.

It is an arithmetic number, because the mean of its divisors is an integer number (5569776257211).

Almost surely, 2^{22200101110021} is an apocalyptic number.

It is an amenable number.

22200101110021 is a deficient number, since it is larger than the sum of its proper divisors (79003918823).

22200101110021 is an equidigital number, since it uses as much as digits as its factorization.

22200101110021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79003918822.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 22200101110021 its reverse (12001110100222), we get a palindrome (34201211210243).

The spelling of 22200101110021 in words is "twenty-two trillion, two hundred billion, one hundred one million, one hundred ten thousand, twenty-one".