1120421046520 has 64 divisors (see below), whose sum is σ = 2557884795840. Its totient is φ = 441608832000.

The previous prime is 1120421046491. The next prime is 1120421046533. The reversal of 1120421046520 is 256401240211.

It is a super-2 number, since 2×1120421046520² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5005314 + ... + 5224366.

It is an arithmetic number, because the mean of its divisors is an integer number (39966949935).

Almost surely, 2^{1120421046520} is an apocalyptic number.

1120421046520 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 1120421046520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1278942397920).

1120421046520 is an abundant number, since it is smaller than the sum of its proper divisors (1437463749320).

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

1120421046520 is a wasteful number, since it uses less digits than its factorization.

1120421046520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220936 (or 220932 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

Adding to 1120421046520 its reverse (256401240211), we get a palindrome (1376822286731).

The spelling of 1120421046520 in words is "one trillion, one hundred twenty billion, four hundred twenty-one million, forty-six thousand, five hundred twenty".