1200220031312 has 10 divisors (see below), whose sum is σ = 2325426310698. Its totient is φ = 600110015648.

The previous prime is 1200220031291. The next prime is 1200220031419. The reversal of 1200220031312 is 2131300220021.

It can be written as a sum of positive squares in only one way, i.e., 821916307216 + 378303724096 = 906596^2 + 615064^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37506875963 + ... + 37506875994.

Almost surely, 2^{1200220031312} is an apocalyptic number.

It is an amenable number.

1200220031312 is a deficient number, since it is larger than the sum of its proper divisors (1125206279386).

1200220031312 is an equidigital number, since it uses as much as digits as its factorization.

1200220031312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75013751965 (or 75013751959 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 1200220031312 its reverse (2131300220021), we get a palindrome (3331520251333).

The spelling of 1200220031312 in words is "one trillion, two hundred billion, two hundred twenty million, thirty-one thousand, three hundred twelve".