212020322321 has 8 divisors (see below), whose sum is σ = 215477244840. Its totient is φ = 208578333312.

The previous prime is 212020322317. The next prime is 212020322369. The reversal of 212020322321 is 123223020212.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 36773431696 + 175246890625 = 191764^2 + 418625^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212020322321 - 2² = 212020322317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212020322293 and 212020322302.

It is not an unprimeable number, because it can be changed into a prime (212020342321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3704750 + ... + 3761543.

It is an arithmetic number, because the mean of its divisors is an integer number (26934655605).

Almost surely, 2^212020322321 is an apocalyptic number.

It is an amenable number.

212020322321 is a deficient number, since it is larger than the sum of its proper divisors (3456922519).

212020322321 is an equidigital number, since it uses as much as digits as its factorization.

212020322321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7466755.

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

Adding to 212020322321 its reverse (123223020212), we get a palindrome (335243342533).

The spelling of 212020322321 in words is "two hundred twelve billion, twenty million, three hundred twenty-two thousand, three hundred twenty-one".