20210220102122 has 8 divisors (see below), whose sum is σ = 31020337831296. Its totient is φ = 9870107491692.

The previous prime is 20210220102097. The next prime is 20210220102179. The reversal of 20210220102122 is 22120102201202.

It is a happy number.

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 20210220102122.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117501279578 + ... + 117501279749.

It is an arithmetic number, because the mean of its divisors is an integer number (3877542228912).

Almost surely, 2^{20210220102122} is an apocalyptic number.

20210220102122 is a deficient number, since it is larger than the sum of its proper divisors (10810117729174).

20210220102122 is a wasteful number, since it uses less digits than its factorization.

20210220102122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235002559372.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 20210220102122 its reverse (22120102201202), we get a palindrome (42330322303324).

The spelling of 20210220102122 in words is "twenty trillion, two hundred ten billion, two hundred twenty million, one hundred two thousand, one hundred twenty-two".