22200110021 has 4 divisors (see below), whose sum is σ = 22260601152. Its totient is φ = 22139618892.

The previous prime is 22200110003. The next prime is 22200110057. The reversal of 22200110021 is 12001100222.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22200110021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22200109984 and 22200110011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22200110221) 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 3 ways as a sum of consecutive naturals, for example, 30245015 + ... + 30245748.

It is an arithmetic number, because the mean of its divisors is an integer number (5565150288).

Almost surely, 2^22200110021 is an apocalyptic number.

It is an amenable number.

22200110021 is a deficient number, since it is larger than the sum of its proper divisors (60491131).

22200110021 is an equidigital number, since it uses as much as digits as its factorization.

22200110021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60491130.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 22200110021 its reverse (12001100222), we get a palindrome (34201210243).

The spelling of 22200110021 in words is "twenty-two billion, two hundred million, one hundred ten thousand, twenty-one".