20401204322 has 12 divisors (see below), whose sum is σ = 30907825458. Its totient is φ = 10099596000.

The previous prime is 20401204279. The next prime is 20401204339. The reversal of 20401204322 is 22340210402.

It can be written as a sum of positive squares in 3 ways, for example, as 20138731921 + 262472401 = 141911^2 + 16201^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20401204294 and 20401204303.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 479579 + ... + 520382.

Almost surely, 2^20401204322 is an apocalyptic number.

20401204322 is a deficient number, since it is larger than the sum of its proper divisors (10506621136).

20401204322 is an equidigital number, since it uses as much as digits as its factorization.

20401204322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000165 (or 1000064 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 20401204322 its reverse (22340210402), we get a palindrome (42741414724).

The spelling of 20401204322 in words is "twenty billion, four hundred one million, two hundred four thousand, three hundred twenty-two".