20423120222 has 8 divisors (see below), whose sum is σ = 30682474272. Its totient is φ = 10195628800.

The previous prime is 20423120213. The next prime is 20423120239. The reversal of 20423120222 is 22202132402.

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 = 20423120194 and 20423120203.

It is a congruent number.

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, 7964054 + ... + 7966617.

It is an arithmetic number, because the mean of its divisors is an integer number (3835309284).

Almost surely, 2^20423120222 is an apocalyptic number.

20423120222 is a deficient number, since it is larger than the sum of its proper divisors (10259354050).

20423120222 is a wasteful number, since it uses less digits than its factorization.

20423120222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15931314.

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

Adding to 20423120222 its reverse (22202132402), we get a palindrome (42625252624).

The spelling of 20423120222 in words is "twenty billion, four hundred twenty-three million, one hundred twenty thousand, two hundred twenty-two".