211222221001101 has 32 divisors (see below), whose sum is σ = 317615207633280. Its totient is φ = 138703087974528.

The previous prime is 211222221001091. The next prime is 211222221001117. The reversal of 211222221001101 is 101100122222112.

211222221001101 is a `hidden beast` number, since 211 + 22 + 222 + 100 + 110 + 1 = 666.

It is not a de Polignac number, because 211222221001101 - 2¹⁴ = 211222220984717 is a prime.

It is a super-2 number, since 2×211222221001101² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211222221001171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20896465 + ... + 29310521.

It is an arithmetic number, because the mean of its divisors is an integer number (9925475238540).

Almost surely, 2^{211222221001101} is an apocalyptic number.

It is an amenable number.

211222221001101 is a deficient number, since it is larger than the sum of its proper divisors (106392986632179).

211222221001101 is a wasteful number, since it uses less digits than its factorization.

211222221001101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8428010 (or 8428004 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 211222221001101 its reverse (101100122222112), we get a palindrome (312322343223213).

The spelling of 211222221001101 in words is "two hundred eleven trillion, two hundred twenty-two billion, two hundred twenty-one million, one thousand, one hundred one".