20400201322 has 8 divisors (see below), whose sum is σ = 31655484900. Its totient is φ = 9848373024.

The previous prime is 20400201317. The next prime is 20400201337. The reversal of 20400201322 is 22310200402.

It can be written as a sum of positive squares in 2 ways, for example, as 20209181281 + 191020041 = 142159^2 + 13821^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 20400201296 and 20400201305.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175863747 + ... + 175863862.

Almost surely, 2^20400201322 is an apocalyptic number.

20400201322 is a deficient number, since it is larger than the sum of its proper divisors (11255283578).

20400201322 is a wasteful number, since it uses less digits than its factorization.

20400201322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351727640.

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 20400201322 its reverse (22310200402), we get a palindrome (42710401724).

The spelling of 20400201322 in words is "twenty billion, four hundred million, two hundred one thousand, three hundred twenty-two".