211222110221101 has 8 divisors (see below), whose sum is σ = 241400027447424. Its totient is φ = 181045025507760.

The previous prime is 211222110221071. The next prime is 211222110221137. The reversal of 211222110221101 is 101122011222112.

It is a happy number.

211222110221101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 211222110221101 - 2¹⁷ = 211222110090029 is a prime.

It is a super-2 number, since 2×211222110221101² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211222110221501) 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, 207584470 + ... + 208599511.

It is an arithmetic number, because the mean of its divisors is an integer number (30175003430928).

Almost surely, 2^{211222110221101} is an apocalyptic number.

It is an amenable number.

211222110221101 is a deficient number, since it is larger than the sum of its proper divisors (30177917226323).

211222110221101 is an equidigital number, since it uses as much as digits as its factorization.

211222110221101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416256491.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 211222110221101 its reverse (101122011222112), we get a palindrome (312344121443213).

The spelling of 211222110221101 in words is "two hundred eleven trillion, two hundred twenty-two billion, one hundred ten million, two hundred twenty-one thousand, one hundred one".