211222202201 has 4 divisors (see below), whose sum is σ = 212223255504. Its totient is φ = 210221148900.

The previous prime is 211222202197. The next prime is 211222202227. The reversal of 211222202201 is 102202222112.

It is a happy number.

211222202201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 211222202201 - 2² = 211222202197 is a prime.

It is a super-2 number, since 2×211222202201² (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 211222202201.

It is not an unprimeable number, because it can be changed into a prime (211222202101) 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 3 ways as a sum of consecutive naturals, for example, 500526335 + ... + 500526756.

It is an arithmetic number, because the mean of its divisors is an integer number (53055813876).

Almost surely, 2^211222202201 is an apocalyptic number.

It is an amenable number.

211222202201 is a deficient number, since it is larger than the sum of its proper divisors (1001053303).

211222202201 is a wasteful number, since it uses less digits than its factorization.

211222202201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001053302.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 211222202201 its reverse (102202222112), we get a palindrome (313424424313).

The spelling of 211222202201 in words is "two hundred eleven billion, two hundred twenty-two million, two hundred two thousand, two hundred one".