312211340402210 has 16 divisors (see below), whose sum is σ = 561980946051000. Its totient is φ = 124884417643776.

The previous prime is 312211340402177. The next prime is 312211340402231. The reversal of 312211340402210 is 12204043112213.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 227439305750281 + 84772034651929 = 15081091^2 + 9207173^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 312211340402210.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3326285 + ... + 25208864.

Almost surely, 2^{312211340402210} is an apocalyptic number.

312211340402210 is a deficient number, since it is larger than the sum of its proper divisors (249769605648790).

312211340402210 is a wasteful number, since it uses less digits than its factorization.

312211340402210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29629285.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 312211340402210 its reverse (12204043112213), we get a palindrome (324415383514423).

The spelling of 312211340402210 in words is "three hundred twelve trillion, two hundred eleven billion, three hundred forty million, four hundred two thousand, two hundred ten".