312213201 has 8 divisors (see below), whose sum is σ = 434383680. Its totient is φ = 199092432.

The previous prime is 312213173. The next prime is 312213203. The reversal of 312213201 is 102312213.

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

It is not a de Polignac number, because 312213201 - 2¹¹ = 312211153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (312213203) 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, 2262346 + ... + 2262483.

It is an arithmetic number, because the mean of its divisors is an integer number (54297960).

Almost surely, 2^312213201 is an apocalyptic number.

It is an amenable number.

312213201 is a deficient number, since it is larger than the sum of its proper divisors (122170479).

312213201 is a wasteful number, since it uses less digits than its factorization.

312213201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4524855.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 312213201 is about 17669.5557669116. Note that the first 3 decimals coincide. The cubic root of 312213201 is about 678.3967426727.

Adding to 312213201 its reverse (102312213), we get a palindrome (414525414).

The spelling of 312213201 in words is "three hundred twelve million, two hundred thirteen thousand, two hundred one".