10521120 has 96 divisors (see below), whose sum is σ = 34618752. Its totient is φ = 2680832.

The previous prime is 10521107. The next prime is 10521149. The reversal of 10521120 is 2112501.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×10521120² = 221387932108800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 10521096 and 10521105.

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, 10564 + ... + 11516.

It is an arithmetic number, because the mean of its divisors is an integer number (360612).

Almost surely, 2^10521120 is an apocalyptic number.

10521120 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 10521120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17309376).

10521120 is an abundant number, since it is smaller than the sum of its proper divisors (24097632).

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

10521120 is a wasteful number, since it uses less digits than its factorization.

10521120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994 (or 986 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 12.

The square root of 10521120 is about 3243.6275988467. The cubic root of 10521120 is about 219.1226768316.

Adding to 10521120 its reverse (2112501), we get a palindrome (12633621).

The spelling of 10521120 in words is "ten million, five hundred twenty-one thousand, one hundred twenty".