352210212221 has 16 divisors (see below), whose sum is σ = 413589525888. Its totient is φ = 293641286400.

The previous prime is 352210212173. The next prime is 352210212223. The reversal of 352210212221 is 122212012253.

It is not a de Polignac number, because 352210212221 - 2¹⁴ = 352210195837 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (352210212223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1758800 + ... + 1948793.

It is an arithmetic number, because the mean of its divisors is an integer number (25849345368).

Almost surely, 2^352210212221 is an apocalyptic number.

It is an amenable number.

352210212221 is a deficient number, since it is larger than the sum of its proper divisors (61379313667).

352210212221 is a wasteful number, since it uses less digits than its factorization.

352210212221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3707972.

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 352210212221 its reverse (122212012253), we get a palindrome (474422224474).

The spelling of 352210212221 in words is "three hundred fifty-two billion, two hundred ten million, two hundred twelve thousand, two hundred twenty-one".