212020010020 has 192 divisors, whose sum is σ = 564734016000. Its totient is φ = 66433651200.

The previous prime is 212020010011. The next prime is 212020010023. The reversal of 212020010020 is 20010020212.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 212020009979 and 212020010006.

It is not an unprimeable number, because it can be changed into a prime (212020010023) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8995411 + ... + 9018949.

It is an arithmetic number, because the mean of its divisors is an integer number (2941323000).

Almost surely, 2^212020010020 is an apocalyptic number.

212020010020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212020010020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (282367008000).

212020010020 is an abundant number, since it is smaller than the sum of its proper divisors (352714005980).

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

212020010020 is a wasteful number, since it uses less digits than its factorization.

212020010020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23683 (or 23667 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 212020010020 its reverse (20010020212), we get a palindrome (232030030232).

The spelling of 212020010020 in words is "two hundred twelve billion, twenty million, ten thousand, twenty".