1312221443230 has 8 divisors (see below), whose sum is σ = 2361998597832. Its totient is φ = 524888577288.

The previous prime is 1312221443189. The next prime is 1312221443231. The reversal of 1312221443230 is 323441222131.

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

It is a super-2 number, since 2×1312221443230² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312221443231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65611072152 + ... + 65611072171.

It is an arithmetic number, because the mean of its divisors is an integer number (295249824729).

Almost surely, 2^{1312221443230} is an apocalyptic number.

1312221443230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1312221443230 is a deficient number, since it is larger than the sum of its proper divisors (1049777154602).

1312221443230 is a wasteful number, since it uses less digits than its factorization.

1312221443230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131222144330.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 1312221443230 its reverse (323441222131), we get a palindrome (1635662665361).

The spelling of 1312221443230 in words is "one trillion, three hundred twelve billion, two hundred twenty-one million, four hundred forty-three thousand, two hundred thirty".