201222201223 has 4 divisors (see below), whose sum is σ = 201702445560. Its totient is φ = 200741956888.

The previous prime is 201222201217. The next prime is 201222201239. The reversal of 201222201223 is 322102222102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322102222102 = 2 ⋅161051111051.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201222201223 is a prime.

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 201222201223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201222201253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240121540 + ... + 240122377.

It is an arithmetic number, because the mean of its divisors is an integer number (50425611390).

Almost surely, 2^201222201223 is an apocalyptic number.

201222201223 is a deficient number, since it is larger than the sum of its proper divisors (480244337).

201222201223 is an equidigital number, since it uses as much as digits as its factorization.

201222201223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480244336.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 201222201223 its reverse (322102222102), we get a palindrome (523324423325).

The spelling of 201222201223 in words is "two hundred one billion, two hundred twenty-two million, two hundred one thousand, two hundred twenty-three".