20202021120210 has 32 divisors (see below), whose sum is σ = 48485317219200. Its totient is φ = 5387153795328.

The previous prime is 20202021120199. The next prime is 20202021120241. The reversal of 20202021120210 is 1202112020202.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20202021120210.

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, 17502 + ... + 6356441.

It is an arithmetic number, because the mean of its divisors is an integer number (1515166163100).

Almost surely, 2^{20202021120210} is an apocalyptic number.

20202021120210 is an abundant number, since it is smaller than the sum of its proper divisors (28283296098990).

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

20202021120210 is a wasteful number, since it uses less digits than its factorization.

20202021120210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6479602.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20202021120210 its reverse (1202112020202), we get a palindrome (21404133140412).

The spelling of 20202021120210 in words is "twenty trillion, two hundred two billion, twenty-one million, one hundred twenty thousand, two hundred ten".