1228550560000 has 405 divisors, whose sum is σ = 3275352208821. Its totient is φ = 459675648000.

The previous prime is 1228550559967. The next prime is 1228550560001. The reversal of 1228550560000 is 650558221.

The square root of 1228550560000 is 1108400.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 7 ways, for example, as 599967979776 + 628582580224 = 774576^2 + 792832^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1228550560001) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 7537119919 + ... + 7537120081.

Almost surely, 2^{1228550560000} is an apocalyptic number.

1228550560000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1228550560000 is the 1108400-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1228550560000

1228550560000 is an abundant number, since it is smaller than the sum of its proper divisors (2046801648821).

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

1228550560000 is an frugal number, since it uses more digits than its factorization.

1228550560000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396 (or 187 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 34.

The spelling of 1228550560000 in words is "one trillion, two hundred twenty-eight billion, five hundred fifty million, five hundred sixty thousand".