20002100221010 has 24 divisors (see below), whose sum is σ = 36264664204236. Its totient is φ = 7943280011040.

The previous prime is 20002100220917. The next prime is 20002100221013. The reversal of 20002100221010 is 1012200120002.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 18758435872201 + 1243664348809 = 4331101^2 + 1115197^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20002100220982 and 20002100221000.

It is not an unprimeable number, because it can be changed into a prime (20002100221013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51569381 + ... + 51955800.

Almost surely, 2^{20002100221010} is an apocalyptic number.

20002100221010 is a deficient number, since it is larger than the sum of its proper divisors (16262563983226).

20002100221010 is a wasteful number, since it uses less digits than its factorization.

20002100221010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103525466 (or 103525327 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20002100221010 its reverse (1012200120002), we get a palindrome (21014300341012).

The spelling of 20002100221010 in words is "twenty trillion, two billion, one hundred million, two hundred twenty-one thousand, ten".