212003320130 has 96 divisors (see below), whose sum is σ = 448479990000. Its totient is φ = 71941588992.

The previous prime is 212003320117. The next prime is 212003320171. The reversal of 212003320130 is 31023300212.

It can be written as a sum of positive squares in 8 ways, for example, as 161516375881 + 50486944249 = 401891^2 + 224693^2 .

It is a super-2 number, since 2×212003320130² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 212003320099 and 212003320108.

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 47 ways as a sum of consecutive naturals, for example, 23423846 + ... + 23432894.

Almost surely, 2^212003320130 is an apocalyptic number.

212003320130 is an abundant number, since it is smaller than the sum of its proper divisors (236476669870).

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

212003320130 is a wasteful number, since it uses less digits than its factorization.

212003320130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9556 (or 9549 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 212003320130 its reverse (31023300212), we get a palindrome (243026620342).

The spelling of 212003320130 in words is "two hundred twelve billion, three million, three hundred twenty thousand, one hundred thirty".