20222120196 has 18 divisors (see below), whose sum is σ = 51117026142. Its totient is φ = 6740706720.

The previous prime is 20222120129. The next prime is 20222120197. The reversal of 20222120196 is 69102122202.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 19680161796 + 541958400 = 140286^2 + 23280^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (20222120197) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 280862745 + ... + 280862816.

Almost surely, 2^20222120196 is an apocalyptic number.

It is an amenable number.

20222120196 is an abundant number, since it is smaller than the sum of its proper divisors (30894905946).

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

20222120196 is a wasteful number, since it uses less digits than its factorization.

20222120196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561725571 (or 561725566 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

Adding to 20222120196 its reverse (69102122202), we get a palindrome (89324242398).

The spelling of 20222120196 in words is "twenty billion, two hundred twenty-two million, one hundred twenty thousand, one hundred ninety-six".