20011021110202 has 32 divisors (see below), whose sum is σ = 30332327523840. Its totient is φ = 9900845136000.

The previous prime is 20011021110149. The next prime is 20011021110233. The reversal of 20011021110202 is 20201112011002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84539038 + ... + 84775414.

It is an arithmetic number, because the mean of its divisors is an integer number (947885235120).

Almost surely, 2^{20011021110202} is an apocalyptic number.

20011021110202 is a deficient number, since it is larger than the sum of its proper divisors (10321306413638).

20011021110202 is a wasteful number, since it uses less digits than its factorization.

20011021110202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237646.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20011021110202 its reverse (20201112011002), we get a palindrome (40212133121204).

The spelling of 20011021110202 in words is "twenty trillion, eleven billion, twenty-one million, one hundred ten thousand, two hundred two".