21000310201322 has 4 divisors (see below), whose sum is σ = 31500465301986. Its totient is φ = 10500155100660.

The previous prime is 21000310201267. The next prime is 21000310201369. The reversal of 21000310201322 is 22310201300012.

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., 13577905802041 + 7422404399281 = 3684821^2 + 2724409^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 21000310201322.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5250077550329 + ... + 5250077550332.

Almost surely, 2^{21000310201322} is an apocalyptic number.

21000310201322 is a deficient number, since it is larger than the sum of its proper divisors (10500155100664).

21000310201322 is a wasteful number, since it uses less digits than its factorization.

21000310201322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10500155100663.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 21000310201322 its reverse (22310201300012), we get a palindrome (43310511501334).

The spelling of 21000310201322 in words is "twenty-one trillion, three hundred ten million, two hundred one thousand, three hundred twenty-two".