20220120196 has 12 divisors (see below), whose sum is σ = 36605390220. Its totient is φ = 9761437280.

The previous prime is 20220120191. The next prime is 20220120209. The reversal of 20220120196 is 69102102202.

It can be written as a sum of positive squares in 2 ways, for example, as 15148686400 + 5071433796 = 123080^2 + 71214^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20220120196.

It is not an unprimeable number, because it can be changed into a prime (20220120191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87155575 + ... + 87155806.

It is an arithmetic number, because the mean of its divisors is an integer number (3050449185).

Almost surely, 2^20220120196 is an apocalyptic number.

It is an amenable number.

20220120196 is a deficient number, since it is larger than the sum of its proper divisors (16385270024).

20220120196 is a wasteful number, since it uses less digits than its factorization.

20220120196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174311414 (or 174311412 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 20220120196 its reverse (69102102202), we get a palindrome (89322222398).

The spelling of 20220120196 in words is "twenty billion, two hundred twenty million, one hundred twenty thousand, one hundred ninety-six".