20320306222 has 8 divisors (see below), whose sum is σ = 30490917336. Its totient is φ = 10156667112.

The previous prime is 20320306213. The next prime is 20320306229. The reversal of 20320306222 is 22260302302.

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 = 20320306193 and 20320306202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20320306229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1735708 + ... + 1747375.

It is an arithmetic number, because the mean of its divisors is an integer number (3811364667).

Almost surely, 2^20320306222 is an apocalyptic number.

20320306222 is a deficient number, since it is larger than the sum of its proper divisors (10170611114).

20320306222 is a wasteful number, since it uses less digits than its factorization.

20320306222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3486002.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 20320306222 its reverse (22260302302), we get a palindrome (42580608524).

The spelling of 20320306222 in words is "twenty billion, three hundred twenty million, three hundred six thousand, two hundred twenty-two".