221221300330211 has 16 divisors (see below), whose sum is σ = 246563079876000. Its totient is φ = 197249440094208.

The previous prime is 221221300330201. The next prime is 221221300330243. The reversal of 221221300330211 is 112033003122122.

221221300330211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 221221300330211 - 2²² = 221221296135907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221221300330201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 181821815 + ... + 183034463.

It is an arithmetic number, because the mean of its divisors is an integer number (15410192492250).

Almost surely, 2^{221221300330211} is an apocalyptic number.

221221300330211 is a deficient number, since it is larger than the sum of its proper divisors (25341779545789).

221221300330211 is a wasteful number, since it uses less digits than its factorization.

221221300330211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1777478.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 221221300330211 its reverse (112033003122122), we get a palindrome (333254303452333).

The spelling of 221221300330211 in words is "two hundred twenty-one trillion, two hundred twenty-one billion, three hundred million, three hundred thirty thousand, two hundred eleven".