212050321 has 8 divisors (see below), whose sum is σ = 242487360. Its totient is φ = 181649328.

The previous prime is 212050313. The next prime is 212050331. The reversal of 212050321 is 123050212.

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

It is not a de Polignac number, because 212050321 - 2³ = 212050313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212050295 and 212050304.

It is not an unprimeable number, because it can be changed into a prime (212050331) 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, 5070 + ... + 21208.

It is an arithmetic number, because the mean of its divisors is an integer number (30310920).

Almost surely, 2^212050321 is an apocalyptic number.

It is an amenable number.

212050321 is a deficient number, since it is larger than the sum of its proper divisors (30437039).

212050321 is a wasteful number, since it uses less digits than its factorization.

212050321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18023.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 212050321 is about 14561.9477062651. The cubic root of 212050321 is about 596.3203698149.

It can be divided in two parts, 2120 and 50321, that added together give a square (52441 = 229²).

The spelling of 212050321 in words is "two hundred twelve million, fifty thousand, three hundred twenty-one".