4512121010120 has 32 divisors (see below), whose sum is σ = 10152383788800. Its totient is φ = 1804828579008.

The previous prime is 4512121010087. The next prime is 4512121010129. The reversal of 4512121010120 is 210101212154.

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

It is a junction number, because it is equal to n+sod(n) for n = 4512121010092 and 4512121010101.

It is not an unprimeable number, because it can be changed into a prime (4512121010129) 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 7 ways as a sum of consecutive naturals, for example, 3387497 + ... + 4527623.

It is an arithmetic number, because the mean of its divisors is an integer number (317261993400).

Almost surely, 2^{4512121010120} is an apocalyptic number.

4512121010120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4512121010120 is an abundant number, since it is smaller than the sum of its proper divisors (5640262778680).

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

4512121010120 is a wasteful number, since it uses less digits than its factorization.

4512121010120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1239077 (or 1239073 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 20.

Adding to 4512121010120 its reverse (210101212154), we get a palindrome (4722222222274).

The spelling of 4512121010120 in words is "four trillion, five hundred twelve billion, one hundred twenty-one million, ten thousand, one hundred twenty".