20021100102210 has 16 divisors (see below), whose sum is σ = 48050640245376. Its totient is φ = 5338960027248.

The previous prime is 20021100102161. The next prime is 20021100102221. The reversal of 20021100102210 is 1220100112002.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 333685001674 + ... + 333685001733.

It is an arithmetic number, because the mean of its divisors is an integer number (3003165015336).

Almost surely, 2^{20021100102210} is an apocalyptic number.

20021100102210 is an abundant number, since it is smaller than the sum of its proper divisors (28029540143166).

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

20021100102210 is a wasteful number, since it uses less digits than its factorization.

20021100102210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667370003417.

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

Adding to 20021100102210 its reverse (1220100112002), we get a palindrome (21241200214212).

The spelling of 20021100102210 in words is "twenty trillion, twenty-one billion, one hundred million, one hundred two thousand, two hundred ten".