20424224222 has 4 divisors (see below), whose sum is σ = 30636336336. Its totient is φ = 10212112110.

The previous prime is 20424224209. The next prime is 20424224239. The reversal of 20424224222 is 22242242402.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22242242402 = 2 ⋅11121121201.

It is a junction number, because it is equal to n+sod(n) for n = 20424224191 and 20424224200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5106056054 + ... + 5106056057.

It is an arithmetic number, because the mean of its divisors is an integer number (7659084084).

Almost surely, 2^20424224222 is an apocalyptic number.

20424224222 is a deficient number, since it is larger than the sum of its proper divisors (10212112114).

20424224222 is a wasteful number, since it uses less digits than its factorization.

20424224222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10212112113.

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 20424224222 its reverse (22242242402), we get a palindrome (42666466624).

The spelling of 20424224222 in words is "twenty billion, four hundred twenty-four million, two hundred twenty-four thousand, two hundred twenty-two".