1000228521600 has 3072 divisors, whose sum is σ = 4946683392000. Its totient is φ = 191102976000.

The previous prime is 1000228521583. The next prime is 1000228521667. The reversal of 1000228521600 is 61258220001.

It is a happy number.

1000228521600 is a `hidden beast` number, since 1 + 0 + 0 + 0 + 2 + 2 + 8 + 52 + 1 + 600 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 5182531104 + ... + 5182531296.

It is an arithmetic number, because the mean of its divisors is an integer number (1610248500).

Almost surely, 2^{1000228521600} is an apocalyptic number.

1000228521600 is a gapful number since it is divisible by the number (10) 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 1000228521600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2473341696000).

1000228521600 is an abundant number, since it is smaller than the sum of its proper divisors (3946454870400).

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

1000228521600 is a wasteful number, since it uses less digits than its factorization.

1000228521600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304 (or 281 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The spelling of 1000228521600 in words is "one trillion, two hundred twenty-eight million, five hundred twenty-one thousand, six hundred".