212102200202020 has 12 divisors (see below), whose sum is σ = 445414620424284. Its totient is φ = 84840880080800.

The previous prime is 212102200201981. The next prime is 212102200202051. The reversal of 212102200202020 is 20202002201212.

It can be written as a sum of positive squares in 2 ways, for example, as 162503957271616 + 49598242930404 = 12747704^2 + 7042602^2 .

It is a junction number, because it is equal to n+sod(n) for n = 212102200201985 and 212102200202003.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5302555005031 + ... + 5302555005070.

It is an arithmetic number, because the mean of its divisors is an integer number (37117885035357).

Almost surely, 2^{212102200202020} is an apocalyptic number.

212102200202020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212102200202020 is an abundant number, since it is smaller than the sum of its proper divisors (233312420222264).

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

212102200202020 is a wasteful number, since it uses less digits than its factorization.

212102200202020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10605110010110 (or 10605110010108 counting only the distinct ones).

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

Adding to 212102200202020 its reverse (20202002201212), we get a palindrome (232304202403232).

The spelling of 212102200202020 in words is "two hundred twelve trillion, one hundred two billion, two hundred million, two hundred two thousand, twenty".