212020110122020 has 24 divisors (see below), whose sum is σ = 445322354259384. Its totient is φ = 84792782524416.

The previous prime is 212020110121921. The next prime is 212020110122053. The reversal of 212020110122020 is 20221011020212.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 118112032900096 + 93908077221924 = 10867936^2 + 9690618^2 .

It is a junction number, because it is equal to n+sod(n) for n = 212020110121985 and 212020110122003.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 953731357 + ... + 953953636.

It is an arithmetic number, because the mean of its divisors is an integer number (18555098094141).

Almost surely, 2^{212020110122020} is an apocalyptic number.

212020110122020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212020110122020 is an abundant number, since it is smaller than the sum of its proper divisors (233302244137364).

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

212020110122020 is a wasteful number, since it uses less digits than its factorization.

212020110122020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1907690559 (or 1907690557 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 212020110122020 its reverse (20221011020212), we get a palindrome (232241121142232).

The spelling of 212020110122020 in words is "two hundred twelve trillion, twenty billion, one hundred ten million, one hundred twenty-two thousand, twenty".