10501220 has 24 divisors (see below), whose sum is σ = 22284024. Its totient is φ = 4156416.

The previous prime is 10501213. The next prime is 10501237. The reversal of 10501220 is 2210501.

It can be written as a sum of positive squares in 4 ways, for example, as 222784 + 10278436 = 472^2 + 3206^2 .

It is a super-2 number, since 2×10501220² = 220551242976800, which contains 22 as substring.

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, 767 + ... + 4646.

It is an arithmetic number, because the mean of its divisors is an integer number (928501).

Almost surely, 2^10501220 is an apocalyptic number.

10501220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10501220 is an abundant number, since it is smaller than the sum of its proper divisors (11782804).

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

10501220 is a wasteful number, since it uses less digits than its factorization.

10501220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5519 (or 5517 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 10501220 is about 3240.5585938230. The cubic root of 10501220 is about 218.9844376395.

Adding to 10501220 its reverse (2210501), we get a palindrome (12711721).

The spelling of 10501220 in words is "ten million, five hundred one thousand, two hundred twenty".