20422222222 has 8 divisors (see below), whose sum is σ = 31621505472. Its totient is φ = 9881720400.

The previous prime is 20422222201. The next prime is 20422222231. The reversal of 20422222222 is 22222222402.

It is a sphenic number, since it is the product of 3 distinct primes.

20422222222 is a modest number, since divided by 222222 gives 20422 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 20422222193 and 20422222202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164695279 + ... + 164695402.

It is an arithmetic number, because the mean of its divisors is an integer number (3952688184).

Almost surely, 2^20422222222 is an apocalyptic number.

20422222222 is a deficient number, since it is larger than the sum of its proper divisors (11199283250).

20422222222 is a wasteful number, since it uses less digits than its factorization.

20422222222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329390714.

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 20422222222 its reverse (22222222402), we get a palindrome (42644444624).

The spelling of 20422222222 in words is "twenty billion, four hundred twenty-two million, two hundred twenty-two thousand, two hundred twenty-two".