1121510216000 has 56 divisors (see below), whose sum is σ = 2777420069736. Its totient is φ = 448604083200.

The previous prime is 1121510215963. The next prime is 1121510216017. The reversal of 1121510216000 is 6120151211.

It can be written as a sum of positive squares in 4 ways, for example, as 17682616576 + 1103827599424 = 132976^2 + 1050632^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70086389 + ... + 70102388.

Almost surely, 2^{1121510216000} is an apocalyptic number.

1121510216000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121510216000 is an abundant number, since it is smaller than the sum of its proper divisors (1655909853736).

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

1121510216000 is an equidigital number, since it uses as much as digits as its factorization.

1121510216000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140188804 (or 140188784 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 20.

Adding to 1121510216000 its reverse (6120151211), we get a palindrome (1127630367211).

The spelling of 1121510216000 in words is "one trillion, one hundred twenty-one billion, five hundred ten million, two hundred sixteen thousand".