20021100110202 has 8 divisors (see below), whose sum is σ = 40042200220416. Its totient is φ = 6673700036732.

The previous prime is 20021100110173. The next prime is 20021100110227. The reversal of 20021100110202 is 20201100112002.

It is a sphenic number, since it is the product of 3 distinct primes.

20021100110202 is an admirable number.

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, 1668425009178 + ... + 1668425009189.

It is an arithmetic number, because the mean of its divisors is an integer number (5005275027552).

Almost surely, 2^{20021100110202} is an apocalyptic number.

20021100110202 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20021100110202 is a wasteful number, since it uses less digits than its factorization.

20021100110202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3336850018372.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20021100110202 its reverse (20201100112002), we get a palindrome (40222200222204).

The spelling of 20021100110202 in words is "twenty trillion, twenty-one billion, one hundred million, one hundred ten thousand, two hundred two".