221221032132211 has 8 divisors (see below), whose sum is σ = 222707846163600. Its totient is φ = 219734246222688.

The previous prime is 221221032132197. The next prime is 221221032132241. The reversal of 221221032132211 is 112231230122122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 221221032132211 - 2¹⁷ = 221221032001139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221221032132241) 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 7 ways as a sum of consecutive naturals, for example, 8875960 + ... + 22830346.

It is an arithmetic number, because the mean of its divisors is an integer number (27838480770450).

Almost surely, 2^{221221032132211} is an apocalyptic number.

221221032132211 is a deficient number, since it is larger than the sum of its proper divisors (1486814031389).

221221032132211 is a wasteful number, since it uses less digits than its factorization.

221221032132211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14060933.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 221221032132211 its reverse (112231230122122), we get a palindrome (333452262254333).

The spelling of 221221032132211 in words is "two hundred twenty-one trillion, two hundred twenty-one billion, thirty-two million, one hundred thirty-two thousand, two hundred eleven".