1228659075312 has 80 divisors (see below), whose sum is σ = 3241226441088. Its totient is φ = 400918186240.

The previous prime is 1228659075311. The next prime is 1228659075383. The reversal of 1228659075312 is 2135709568221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1228659075311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 581887 + ... + 1672097.

Almost surely, 2^{1228659075312} is an apocalyptic number.

1228659075312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1228659075312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1620613220544).

1228659075312 is an abundant number, since it is smaller than the sum of its proper divisors (2012567365776).

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

1228659075312 is a wasteful number, since it uses less digits than its factorization.

1228659075312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1090718 (or 1090712 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 51.

The spelling of 1228659075312 in words is "one trillion, two hundred twenty-eight billion, six hundred fifty-nine million, seventy-five thousand, three hundred twelve".