211222201123 has 8 divisors (see below), whose sum is σ = 216477925776. Its totient is φ = 205971427200.

The previous prime is 211222201087. The next prime is 211222201153. The reversal of 211222201123 is 321102222112.

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-211222201123 is a prime.

It is a super-2 number, since 2×211222201123² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 211222201123.

It is not an unprimeable number, because it can be changed into a prime (211222201153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1151218 + ... + 1322023.

It is an arithmetic number, because the mean of its divisors is an integer number (27059740722).

Almost surely, 2^211222201123 is an apocalyptic number.

211222201123 is a deficient number, since it is larger than the sum of its proper divisors (5255724653).

211222201123 is a wasteful number, since it uses less digits than its factorization.

211222201123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2475365.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 211222201123 its reverse (321102222112), we get a palindrome (532324423235).

The spelling of 211222201123 in words is "two hundred eleven billion, two hundred twenty-two million, two hundred one thousand, one hundred twenty-three".