212312201 has 8 divisors (see below), whose sum is σ = 227028744. Its totient is φ = 197843200.

The previous prime is 212312173. The next prime is 212312231. The reversal of 212312201 is 102213212.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 139806976 + 72505225 = 11824^2 + 8515^2 .

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 212312201 - 2¹⁴ = 212295817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212312231) 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, 60110 + ... + 63543.

It is an arithmetic number, because the mean of its divisors is an integer number (28378593).

Almost surely, 2^212312201 is an apocalyptic number.

It is an amenable number.

212312201 is a deficient number, since it is larger than the sum of its proper divisors (14716543).

212312201 is a wasteful number, since it uses less digits than its factorization.

212312201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123771.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 212312201 is about 14570.9368607513. The cubic root of 212312201 is about 596.5657520346.

Adding to 212312201 its reverse (102213212), we get a palindrome (314525413).

It can be divided in two parts, 21231 and 2201, that added together give a palindrome (23432).

The spelling of 212312201 in words is "two hundred twelve million, three hundred twelve thousand, two hundred one".