212322122320 has 160 divisors (see below), whose sum is σ = 635312480256. Its totient is φ = 64043481600.

The previous prime is 212322122303. The next prime is 212322122321. The reversal of 212322122320 is 23221223212.

212322122320 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 (22).

It is a junction number, because it is equal to n+sod(n) for n = 212322122291 and 212322122300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212322122321) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 364974 + ... + 746893.

Almost surely, 2^212322122320 is an apocalyptic number.

212322122320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212322122320 is an abundant number, since it is smaller than the sum of its proper divisors (422990357936).

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

212322122320 is a wasteful number, since it uses less digits than its factorization.

212322122320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111929 (or 1111923 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 212322122320 its reverse (23221223212), we get a palindrome (235543345532).

The spelling of 212322122320 in words is "two hundred twelve billion, three hundred twenty-two million, one hundred twenty-two thousand, three hundred twenty".