212320201 has 4 divisors (see below), whose sum is σ = 212452804. Its totient is φ = 212187600.

The previous prime is 212320177. The next prime is 212320217. The reversal of 212320201 is 102023212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 65934400 + 146385801 = 8120^2 + 12099^2 .

It is a cyclic number.

It is not a de Polignac number, because 212320201 - 2⁵ = 212320169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212320261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63870 + ... + 67111.

It is an arithmetic number, because the mean of its divisors is an integer number (53113201).

Almost surely, 2^212320201 is an apocalyptic number.

It is an amenable number.

212320201 is a deficient number, since it is larger than the sum of its proper divisors (132603).

212320201 is a wasteful number, since it uses less digits than its factorization.

212320201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132602.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 212320201 is about 14571.2113772328. The cubic root of 212320201 is about 596.5732448778.

Adding to 212320201 its reverse (102023212), we get a palindrome (314343413).

It can be divided in two parts, 212320 and 201, that added together give a square (212521 = 461²).

The spelling of 212320201 in words is "two hundred twelve million, three hundred twenty thousand, two hundred one".