211122001222201 has 8 divisors (see below), whose sum is σ = 211613494322664. Its totient is φ = 210630526156800.

The previous prime is 211122001222199. The next prime is 211122001222291. The reversal of 211122001222201 is 102222100221112.

It can be written as a sum of positive squares in 4 ways, for example, as 13935109816576 + 197186891405625 = 3732976^2 + 14042325^2 .

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 211122001222201 - 2¹ = 211122001222199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211122001222291) 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, 19074285 + ... + 28036981.

It is an arithmetic number, because the mean of its divisors is an integer number (26451686790333).

Almost surely, 2^{211122001222201} is an apocalyptic number.

It is an amenable number.

211122001222201 is a deficient number, since it is larger than the sum of its proper divisors (491493100463).

211122001222201 is an equidigital number, since it uses as much as digits as its factorization.

211122001222201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9017531.

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

Adding to 211122001222201 its reverse (102222100221112), we get a palindrome (313344101443313).

The spelling of 211122001222201 in words is "two hundred eleven trillion, one hundred twenty-two billion, one million, two hundred twenty-two thousand, two hundred one".