20021120222 has 8 divisors (see below), whose sum is σ = 30032421672. Its totient is φ = 10010313000.

The previous prime is 20021120191. The next prime is 20021120227. The reversal of 20021120222 is 22202112002.

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 = 20021120197 and 20021120206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20021120227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4097 + ... + 200147.

It is an arithmetic number, because the mean of its divisors is an integer number (3754052709).

Almost surely, 2^20021120222 is an apocalyptic number.

20021120222 is a deficient number, since it is larger than the sum of its proper divisors (10011301450).

20021120222 is a wasteful number, since it uses less digits than its factorization.

20021120222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247114.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 20021120222 its reverse (22202112002), we get a palindrome (42223232224).

The spelling of 20021120222 in words is "twenty billion, twenty-one million, one hundred twenty thousand, two hundred twenty-two".