212212202020 has 96 divisors (see below), whose sum is σ = 554141887488. Its totient is φ = 66469220352.

The previous prime is 212212202009. The next prime is 212212202051. The reversal of 212212202020 is 20202212212.

It is a junction number, because it is equal to n+sod(n) for n = 212212201985 and 212212202003.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 424492 + ... + 777571.

It is an arithmetic number, because the mean of its divisors is an integer number (5772311328).

Almost surely, 2^212212202020 is an apocalyptic number.

212212202020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212212202020 is an abundant number, since it is smaller than the sum of its proper divisors (341929685468).

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

212212202020 is a wasteful number, since it uses less digits than its factorization.

212212202020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1202189 (or 1202187 counting only the distinct ones).

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

Adding to 212212202020 its reverse (20202212212), we get a palindrome (232414414232).

The spelling of 212212202020 in words is "two hundred twelve billion, two hundred twelve million, two hundred two thousand, twenty".