201221211200222 has 16 divisors (see below), whose sum is σ = 302717427790032. Its totient is φ = 100315459495680.

The previous prime is 201221211200221. The next prime is 201221211200263. The reversal of 201221211200222 is 222002112122102.

It is a junction number, because it is equal to n+sod(n) for n = 201221211200194 and 201221211200203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201221211200221) 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, 7390229 + ... + 21378912.

It is an arithmetic number, because the mean of its divisors is an integer number (18919839236877).

Almost surely, 2^{201221211200222} is an apocalyptic number.

201221211200222 is a deficient number, since it is larger than the sum of its proper divisors (101496216589810).

201221211200222 is a wasteful number, since it uses less digits than its factorization.

201221211200222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28779403.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 201221211200222 its reverse (222002112122102), we get a palindrome (423223323322324).

The spelling of 201221211200222 in words is "two hundred one trillion, two hundred twenty-one billion, two hundred eleven million, two hundred thousand, two hundred twenty-two".