212213030020 has 12 divisors (see below), whose sum is σ = 445647363084. Its totient is φ = 84885212000.

The previous prime is 212213030011. The next prime is 212213030041. The reversal of 212213030020 is 20030312212.

It can be written as a sum of positive squares in 2 ways, for example, as 101093474304 + 111119555716 = 317952^2 + 333346^2 .

It is a super-2 number, since 2×212213030020² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212213029976 and 212213030003.

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 3 ways as a sum of consecutive naturals, for example, 5305325731 + ... + 5305325770.

It is an arithmetic number, because the mean of its divisors is an integer number (37137280257).

Almost surely, 2^212213030020 is an apocalyptic number.

212213030020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212213030020 is an abundant number, since it is smaller than the sum of its proper divisors (233434333064).

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

212213030020 is a wasteful number, since it uses less digits than its factorization.

212213030020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10610651510 (or 10610651508 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 212213030020 its reverse (20030312212), we get a palindrome (232243342232).

The spelling of 212213030020 in words is "two hundred twelve billion, two hundred thirteen million, thirty thousand, twenty".