212202321320 has 64 divisors (see below), whose sum is σ = 522279878400. Its totient is φ = 76954164480.

The previous prime is 212202321281. The next prime is 212202321343. The reversal of 212202321320 is 23123202212.

It is a happy number.

212202321320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 = 212202321292 and 212202321301.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 495575 + ... + 818534.

It is an arithmetic number, because the mean of its divisors is an integer number (8160623100).

Almost surely, 2^212202321320 is an apocalyptic number.

212202321320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212202321320 is an abundant number, since it is smaller than the sum of its proper divisors (310077557080).

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

212202321320 is a wasteful number, since it uses less digits than its factorization.

212202321320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1314498 (or 1314494 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 212202321320 its reverse (23123202212), we get a palindrome (235325523532).

The spelling of 212202321320 in words is "two hundred twelve billion, two hundred two million, three hundred twenty-one thousand, three hundred twenty".