213322201322122 has 4 divisors (see below), whose sum is σ = 319983301983186. Its totient is φ = 106661100661060.

The previous prime is 213322201322081. The next prime is 213322201322141. The reversal of 213322201322122 is 221223102223312.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 192513377256561 + 20808824065561 = 13874919^2 + 4561669^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53330550330529 + ... + 53330550330532.

Almost surely, 2^{213322201322122} is an apocalyptic number.

213322201322122 is a deficient number, since it is larger than the sum of its proper divisors (106661100661064).

213322201322122 is a wasteful number, since it uses less digits than its factorization.

213322201322122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106661100661063.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 213322201322122 its reverse (221223102223312), we get a palindrome (434545303545434).

The spelling of 213322201322122 in words is "two hundred thirteen trillion, three hundred twenty-two billion, two hundred one million, three hundred twenty-two thousand, one hundred twenty-two".