20002222021210 has 48 divisors (see below), whose sum is σ = 42618847666248. Its totient is φ = 6714032561280.

The previous prime is 20002222021193. The next prime is 20002222021247. The reversal of 20002222021210 is 1212022220002.

It can be written as a sum of positive squares in 4 ways, for example, as 14283796330881 + 5718425690329 = 3779391^2 + 2391323^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 635782809 + ... + 635814268.

Almost surely, 2^{20002222021210} is an apocalyptic number.

20002222021210 is an abundant number, since it is smaller than the sum of its proper divisors (22616625645038).

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

20002222021210 is a wasteful number, since it uses less digits than its factorization.

20002222021210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1271597119 (or 1271597108 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 20002222021210 its reverse (1212022220002), we get a palindrome (21214244241212).

The spelling of 20002222021210 in words is "twenty trillion, two billion, two hundred twenty-two million, twenty-one thousand, two hundred ten".