22101220221211 has 4 divisors (see below), whose sum is σ = 22814162809024. Its totient is φ = 21388277633400.

The previous prime is 22101220221203. The next prime is 22101220221221. The reversal of 22101220221211 is 11212202210122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22101220221211 - 2³ = 22101220221203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22101220221221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 356471293860 + ... + 356471293921.

It is an arithmetic number, because the mean of its divisors is an integer number (5703540702256).

Almost surely, 2^{22101220221211} is an apocalyptic number.

22101220221211 is a deficient number, since it is larger than the sum of its proper divisors (712942587813).

22101220221211 is an equidigital number, since it uses as much as digits as its factorization.

22101220221211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712942587812.

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

Adding to 22101220221211 its reverse (11212202210122), we get a palindrome (33313422431333).

The spelling of 22101220221211 in words is "twenty-two trillion, one hundred one billion, two hundred twenty million, two hundred twenty-one thousand, two hundred eleven".