210202202113220 has 12 divisors (see below), whose sum is σ = 441424624437804. Its totient is φ = 84080880845280.

The previous prime is 210202202113187. The next prime is 210202202113223. The reversal of 210202202113220 is 22311202202012.

It can be written as a sum of positive squares in 2 ways, for example, as 160909783140484 + 49292418972736 = 12685022^2 + 7020856^2 .

It is a super-3 number, since 3×210202202113220³ (a number of 44 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 10510110105661 = 210202202113220 / (2 + 1 + 0 + 2 + 0 + 2 + 2 + 0 + 2 + 1 + 1 + 3 + 2 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 210202202113192 and 210202202113201.

It is not an unprimeable number, because it can be changed into a prime (210202202113223) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 5255055052811 + ... + 5255055052850.

It is an arithmetic number, because the mean of its divisors is an integer number (36785385369817).

Almost surely, 2^{210202202113220} is an apocalyptic number.

210202202113220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210202202113220 is an abundant number, since it is smaller than the sum of its proper divisors (231222422324584).

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

210202202113220 is a wasteful number, since it uses less digits than its factorization.

210202202113220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10510110105670 (or 10510110105668 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 210202202113220 its reverse (22311202202012), we get a palindrome (232513404315232).

The spelling of 210202202113220 in words is "two hundred ten trillion, two hundred two billion, two hundred two million, one hundred thirteen thousand, two hundred twenty".