22102110221221 has 8 divisors (see below), whose sum is σ = 22159646902080. Its totient is φ = 22044645689088.

The previous prime is 22102110221201. The next prime is 22102110221227. The reversal of 22102110221221 is 12212201120122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22102110221221 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 (22102110221227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17423676 + ... + 18649093.

It is an arithmetic number, because the mean of its divisors is an integer number (2769955862760).

Almost surely, 2^{22102110221221} is an apocalyptic number.

It is an amenable number.

22102110221221 is a deficient number, since it is larger than the sum of its proper divisors (57536680859).

22102110221221 is an equidigital number, since it uses as much as digits as its factorization.

22102110221221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36074363.

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

Adding to 22102110221221 its reverse (12212201120122), we get a palindrome (34314311341343).

The spelling of 22102110221221 in words is "twenty-two trillion, one hundred two billion, one hundred ten million, two hundred twenty-one thousand, two hundred twenty-one".