312223133100000 has 144 divisors (see below), whose sum is σ = 1024416589610736. Its totient is φ = 83259502080000.

The previous prime is 312223133099987. The next prime is 312223133100019. The reversal of 312223133100000 is 1331322213.

It is a super-2 number, since 2×312223133100000² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 312223133100000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 520071889 + ... + 520671888.

It is an arithmetic number, because the mean of its divisors is an integer number (7114004094519).

Almost surely, 2^{312223133100000} is an apocalyptic number.

312223133100000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

312223133100000 is an abundant number, since it is smaller than the sum of its proper divisors (712193456510736).

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

312223133100000 is an equidigital number, since it uses as much as digits as its factorization.

312223133100000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1040743815 (or 1040743787 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 312223133100000 its reverse (1331322213), we get a palindrome (312224464422213).

The spelling of 312223133100000 in words is "three hundred twelve trillion, two hundred twenty-three billion, one hundred thirty-three million, one hundred thousand".