212230020130020 has 144 divisors (see below), whose sum is σ = 650408088657600. Its totient is φ = 56011076064000.

The previous prime is 212230020130019. The next prime is 212230020130039. The reversal of 212230020130020 is 20031020032212.

212230020130020 is a `hidden beast` number, since 2 + 1 + 22 + 300 + 20 + 1 + 300 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 212230020129975 and 212230020130002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 41411031 + ... + 46252929.

It is an arithmetic number, because the mean of its divisors is an integer number (4516722837900).

Almost surely, 2^{212230020130020} is an apocalyptic number.

212230020130020 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 212230020130020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (325204044328800).

212230020130020 is an abundant number, since it is smaller than the sum of its proper divisors (438178068527580).

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

212230020130020 is a wasteful number, since it uses less digits than its factorization.

212230020130020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4844426 (or 4844421 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 212230020130020 its reverse (20031020032212), we get a palindrome (232261040162232).

The spelling of 212230020130020 in words is "two hundred twelve trillion, two hundred thirty billion, twenty million, one hundred thirty thousand, twenty".