20021100220202 has 16 divisors (see below), whose sum is σ = 30097479025152. Its totient is φ = 9988608199920.

The previous prime is 20021100220201. The next prime is 20021100220243. The reversal of 20021100220202 is 20202200112002.

It is not an unprimeable number, because it can be changed into a prime (20021100220201) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 44792423 + ... + 45237189.

It is an arithmetic number, because the mean of its divisors is an integer number (1881092439072).

Almost surely, 2^{20021100220202} is an apocalyptic number.

20021100220202 is a deficient number, since it is larger than the sum of its proper divisors (10076378804950).

20021100220202 is a wasteful number, since it uses less digits than its factorization.

20021100220202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494053.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 20021100220202 its reverse (20202200112002), we get a palindrome (40223300332204).

The spelling of 20021100220202 in words is "twenty trillion, twenty-one billion, one hundred million, two hundred twenty thousand, two hundred two".