212320322130 has 64 divisors (see below), whose sum is σ = 595907693568. Its totient is φ = 47401744320.

The previous prime is 212320322117. The next prime is 212320322131. The reversal of 212320322130 is 31223023212.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 212320322097 and 212320322106.

It is not an unprimeable number, because it can be changed into a prime (212320322131) by changing a digit.

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, 11747356 + ... + 11765415.

It is an arithmetic number, because the mean of its divisors is an integer number (9311057712).

Almost surely, 2^212320322130 is an apocalyptic number.

212320322130 is an abundant number, since it is smaller than the sum of its proper divisors (383587371438).

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

212320322130 is a wasteful number, since it uses less digits than its factorization.

212320322130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23512831.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 212320322130 its reverse (31223023212), we get a palindrome (243543345342).

The spelling of 212320322130 in words is "two hundred twelve billion, three hundred twenty million, three hundred twenty-two thousand, one hundred thirty".