212302113320 has 160 divisors (see below), whose sum is σ = 529020261000. Its totient is φ = 76675822080.

The previous prime is 212302113313. The next prime is 212302113329. The reversal of 212302113320 is 23311203212.

It can be written as a sum of positive squares in 4 ways, for example, as 182026809316 + 30275304004 = 426646^2 + 173998^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 212302113292 and 212302113301.

It is not an unprimeable number, because it can be changed into a prime (212302113329) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 91944326 + ... + 91946634.

Almost surely, 2^212302113320 is an apocalyptic number.

212302113320 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 212302113320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (264510130500).

212302113320 is an abundant number, since it is smaller than the sum of its proper divisors (316718147680).

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

212302113320 is a wasteful number, since it uses less digits than its factorization.

212302113320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2521 (or 2484 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 212302113320 its reverse (23311203212), we get a palindrome (235613316532).

The spelling of 212302113320 in words is "two hundred twelve billion, three hundred two million, one hundred thirteen thousand, three hundred twenty".