22102212110221 has 4 divisors (see below), whose sum is σ = 22102237842592. Its totient is φ = 22102186377852.

The previous prime is 22102212110207. The next prime is 22102212110263. The reversal of 22102212110221 is 12201121220122.

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 not a de Polignac number, because 22102212110221 - 2⁵ = 22102212110189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22102212110201) 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, 11531655 + ... + 13311028.

It is an arithmetic number, because the mean of its divisors is an integer number (5525559460648).

Almost surely, 2^{22102212110221} is an apocalyptic number.

It is an amenable number.

22102212110221 is a deficient number, since it is larger than the sum of its proper divisors (25732371).

22102212110221 is an equidigital number, since it uses as much as digits as its factorization.

22102212110221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25732370.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 22102212110221 its reverse (12201121220122), we get a palindrome (34303333330343).

The spelling of 22102212110221 in words is "twenty-two trillion, one hundred two billion, two hundred twelve million, one hundred ten thousand, two hundred twenty-one".