20202221222 has 8 divisors (see below), whose sum is σ = 31348274400. Its totient is φ = 9752796424.

The previous prime is 20202221213. The next prime is 20202221227. The reversal of 20202221222 is 22212220202.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20202221222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20202221227) 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, 174157022 + ... + 174157137.

It is an arithmetic number, because the mean of its divisors is an integer number (3918534300).

Almost surely, 2^20202221222 is an apocalyptic number.

20202221222 is a deficient number, since it is larger than the sum of its proper divisors (11146053178).

20202221222 is a wasteful number, since it uses less digits than its factorization.

20202221222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348314190.

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 20202221222 its reverse (22212220202), we get a palindrome (42414441424).

The spelling of 20202221222 in words is "twenty billion, two hundred two million, two hundred twenty-one thousand, two hundred twenty-two".