20303121222 has 96 divisors (see below), whose sum is σ = 45647971200. Its totient is φ = 6516889344.

The previous prime is 20303121109. The next prime is 20303121229. The reversal of 20303121222 is 22212130302.

20303121222 is a `hidden beast` number, since 20 + 303 + 121 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20303121195 and 20303121204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20303121229) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 36450568 + ... + 36451124.

It is an arithmetic number, because the mean of its divisors is an integer number (475499700).

Almost surely, 2^20303121222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20303121222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22823985600).

20303121222 is an abundant number, since it is smaller than the sum of its proper divisors (25344849978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20303121222 is a wasteful number, since it uses less digits than its factorization.

20303121222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1070 (or 1067 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20303121222 its reverse (22212130302), we get a palindrome (42515251524).

The spelling of 20303121222 in words is "twenty billion, three hundred three million, one hundred twenty-one thousand, two hundred twenty-two".