22201112021 has 4 divisors (see below), whose sum is σ = 24219394944. Its totient is φ = 20182829100.

The previous prime is 22201112009. The next prime is 22201112069. The reversal of 22201112021 is 12021110222.

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-22201112021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22201111987 and 22201112005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22201112621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1009141445 + ... + 1009141466.

It is an arithmetic number, because the mean of its divisors is an integer number (6054848736).

Almost surely, 2^22201112021 is an apocalyptic number.

It is an amenable number.

22201112021 is a deficient number, since it is larger than the sum of its proper divisors (2018282923).

22201112021 is a wasteful number, since it uses less digits than its factorization.

22201112021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2018282922.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 22201112021 its reverse (12021110222), we get a palindrome (34222222243).

The spelling of 22201112021 in words is "twenty-two billion, two hundred one million, one hundred twelve thousand, twenty-one".