210202101102020 has 12 divisors (see below), whose sum is σ = 441424412314284. Its totient is φ = 84080840440800.

The previous prime is 210202101102011. The next prime is 210202101102029. The reversal of 210202101102020 is 20201101202012.

It is an interprime number because it is at equal distance from previous prime (210202101102011) and next prime (210202101102029).

It can be written as a sum of positive squares in 2 ways, for example, as 41323915143424 + 168878185958596 = 6428368^2 + 12995314^2 .

It is a junction number, because it is equal to n+sod(n) for n = 210202101101986 and 210202101102004.

It is not an unprimeable number, because it can be changed into a prime (210202101102029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5255052527531 + ... + 5255052527570.

It is an arithmetic number, because the mean of its divisors is an integer number (36785367692857).

Almost surely, 2^{210202101102020} is an apocalyptic number.

210202101102020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210202101102020 is an abundant number, since it is smaller than the sum of its proper divisors (231222311212264).

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

210202101102020 is a wasteful number, since it uses less digits than its factorization.

210202101102020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10510105055110 (or 10510105055108 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 210202101102020 its reverse (20201101202012), we get a palindrome (230403202304032).

The spelling of 210202101102020 in words is "two hundred ten trillion, two hundred two billion, one hundred one million, one hundred two thousand, twenty".