1312201200012 has 48 divisors (see below), whose sum is σ = 3100091914080. Its totient is φ = 431942866432.

The previous prime is 1312201199957. The next prime is 1312201200103. The reversal of 1312201200012 is 2100021022131.

It is a junction number, because it is equal to n+sod(n) for n = 1312201199964 and 1312201200000.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80398 + ... + 1621994.

It is an arithmetic number, because the mean of its divisors is an integer number (64585248210).

Almost surely, 2^{1312201200012} is an apocalyptic number.

1312201200012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1312201200012 is an abundant number, since it is smaller than the sum of its proper divisors (1787890714068).

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

1312201200012 is a wasteful number, since it uses less digits than its factorization.

1312201200012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1542490 (or 1542488 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 1312201200012 its reverse (2100021022131), we get a palindrome (3412222222143).

The spelling of 1312201200012 in words is "one trillion, three hundred twelve billion, two hundred one million, two hundred thousand, twelve".