312201440220404 has 12 divisors (see below), whose sum is σ = 624402880440864. Its totient is φ = 133800617237304.

The previous prime is 312201440220289. The next prime is 312201440220421. The reversal of 312201440220404 is 404022044102213.

It is a happy number.

312201440220404 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5575025718194 + ... + 5575025718249.

It is an arithmetic number, because the mean of its divisors is an integer number (52033573370072).

Almost surely, 2^{312201440220404} is an apocalyptic number.

It is an amenable number.

312201440220404 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

312201440220404 is a wasteful number, since it uses less digits than its factorization.

312201440220404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11150051436454 (or 11150051436452 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 312201440220404 its reverse (404022044102213), we get a palindrome (716223484322617).

The spelling of 312201440220404 in words is "three hundred twelve trillion, two hundred one billion, four hundred forty million, two hundred twenty thousand, four hundred four".