1121516510550 has 24 divisors (see below), whose sum is σ = 2781360946536. Its totient is φ = 299071069440.

The previous prime is 1121516510537. The next prime is 1121516510551. The reversal of 1121516510550 is 550156151211.

It is a super-2 number, since 2×1121516510550² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121516510551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3738388219 + ... + 3738388518.

It is an arithmetic number, because the mean of its divisors is an integer number (115890039439).

Almost surely, 2^{1121516510550} is an apocalyptic number.

1121516510550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1121516510550 is an abundant number, since it is smaller than the sum of its proper divisors (1659844435986).

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

1121516510550 is a wasteful number, since it uses less digits than its factorization.

1121516510550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7476776752 (or 7476776747 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 33.

The spelling of 1121516510550 in words is "one trillion, one hundred twenty-one billion, five hundred sixteen million, five hundred ten thousand, five hundred fifty".