201201221222 has 4 divisors (see below), whose sum is σ = 301801831836. Its totient is φ = 100600610610.

The previous prime is 201201221203. The next prime is 201201221227. The reversal of 201201221222 is 222122102102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 201201221222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201201221227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50300305304 + ... + 50300305307.

It is an arithmetic number, because the mean of its divisors is an integer number (75450457959).

Almost surely, 2^201201221222 is an apocalyptic number.

201201221222 is a deficient number, since it is larger than the sum of its proper divisors (100600610614).

201201221222 is a wasteful number, since it uses less digits than its factorization.

201201221222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100600610613.

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

Adding to 201201221222 its reverse (222122102102), we get a palindrome (423323323324).

The spelling of 201201221222 in words is "two hundred one billion, two hundred one million, two hundred twenty-one thousand, two hundred twenty-two".