20005210215322 has 4 divisors (see below), whose sum is σ = 30007815322986. Its totient is φ = 10002605107660.

The previous prime is 20005210215299. The next prime is 20005210215329. The reversal of 20005210215322 is 22351201250002.

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., 17094743507241 + 2910466708081 = 4134579^2 + 1706009^2 .

It is not an unprimeable number, because it can be changed into a prime (20005210215329) 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 as a sum of consecutive naturals, namely, 5001302553829 + ... + 5001302553832.

Almost surely, 2^{20005210215322} is an apocalyptic number.

20005210215322 is a deficient number, since it is larger than the sum of its proper divisors (10002605107664).

20005210215322 is a wasteful number, since it uses less digits than its factorization.

20005210215322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10002605107663.

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 20005210215322 its reverse (22351201250002), we get a palindrome (42356411465324).

The spelling of 20005210215322 in words is "twenty trillion, five billion, two hundred ten million, two hundred fifteen thousand, three hundred twenty-two".