1220441524000 has 96 divisors (see below), whose sum is σ = 2999638278000. Its totient is φ = 488011622400.

The previous prime is 1220441523971. The next prime is 1220441524013. The reversal of 1220441524000 is 4251440221.

It can be written as a sum of positive squares in 8 ways, for example, as 26046086544 + 1194395437456 = 161388^2 + 1092884^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

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, 12145966 + ... + 12246034.

Almost surely, 2^{1220441524000} is an apocalyptic number.

1220441524000 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 1220441524000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1499819139000).

1220441524000 is an abundant number, since it is smaller than the sum of its proper divisors (1779196754000).

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

1220441524000 is a wasteful number, since it uses less digits than its factorization.

1220441524000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103143 (or 103125 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

Adding to 1220441524000 its reverse (4251440221), we get a palindrome (1224692964221).

The spelling of 1220441524000 in words is "one trillion, two hundred twenty billion, four hundred forty-one million, five hundred twenty-four thousand".