22001112200221 has 32 divisors (see below), whose sum is σ = 27715104910080. Its totient is φ = 16965537177600.

The previous prime is 22001112200219. The next prime is 22001112200227. The reversal of 22001112200221 is 12200221110022.

It is a happy number.

It is not a de Polignac number, because 22001112200221 - 2¹ = 22001112200219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22001112200195 and 22001112200204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22001112200227) 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 31 ways as a sum of consecutive naturals, for example, 91965841 + ... + 92204761.

It is an arithmetic number, because the mean of its divisors is an integer number (866097028440).

Almost surely, 2^{22001112200221} is an apocalyptic number.

It is an amenable number.

22001112200221 is a deficient number, since it is larger than the sum of its proper divisors (5713992709859).

22001112200221 is a wasteful number, since it uses less digits than its factorization.

22001112200221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251365.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22001112200221 its reverse (12200221110022), we get a palindrome (34201333310243).

The spelling of 22001112200221 in words is "twenty-two trillion, one billion, one hundred twelve million, two hundred thousand, two hundred twenty-one".