20421202322 has 16 divisors (see below), whose sum is σ = 31933004544. Its totient is φ = 9783390000.

The previous prime is 20421202313. The next prime is 20421202343. The reversal of 20421202322 is 22320212402.

It is a junction number, because it is equal to n+sod(n) for n = 20421202294 and 20421202303.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1624304 + ... + 1636827.

It is an arithmetic number, because the mean of its divisors is an integer number (1995812784).

Almost surely, 2^20421202322 is an apocalyptic number.

20421202322 is a deficient number, since it is larger than the sum of its proper divisors (11511802222).

20421202322 is a wasteful number, since it uses less digits than its factorization.

20421202322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3261265.

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

Adding to 20421202322 its reverse (22320212402), we get a palindrome (42741414724).

The spelling of 20421202322 in words is "twenty billion, four hundred twenty-one million, two hundred two thousand, three hundred twenty-two".