221332201211 has 16 divisors (see below), whose sum is σ = 247364748288. Its totient is φ = 196285780800.

The previous prime is 221332201193. The next prime is 221332201213. The reversal of 221332201211 is 112102233122.

It is a cyclic number.

It is not a de Polignac number, because 221332201211 - 2⁶ = 221332201147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221332201213) 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 15 ways as a sum of consecutive naturals, for example, 9848990 + ... + 9871436.

It is an arithmetic number, because the mean of its divisors is an integer number (15460296768).

Almost surely, 2^221332201211 is an apocalyptic number.

221332201211 is a deficient number, since it is larger than the sum of its proper divisors (26032547077).

221332201211 is a wasteful number, since it uses less digits than its factorization.

221332201211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44362.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 221332201211 its reverse (112102233122), we get a palindrome (333434434333).

The spelling of 221332201211 in words is "two hundred twenty-one billion, three hundred thirty-two million, two hundred one thousand, two hundred eleven".