210202102020220 has 96 divisors (see below), whose sum is σ = 467369400960000. Its totient is φ = 79190649817344.

The previous prime is 210202102020203. The next prime is 210202102020349. The reversal of 210202102020220 is 22020201202012.

It is a junction number, because it is equal to n+sod(n) for n = 210202102020194 and 210202102020203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1317810031 + ... + 1317969529.

It is an arithmetic number, because the mean of its divisors is an integer number (4868431260000).

Almost surely, 2^{210202102020220} is an apocalyptic number.

210202102020220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 210202102020220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (233684700480000).

210202102020220 is an abundant number, since it is smaller than the sum of its proper divisors (257167298939780).

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

210202102020220 is a wasteful number, since it uses less digits than its factorization.

210202102020220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179747 (or 179745 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 210202102020220 its reverse (22020201202012), we get a palindrome (232222303222232).

The spelling of 210202102020220 in words is "two hundred ten trillion, two hundred two billion, one hundred two million, twenty thousand, two hundred twenty".