10321220 has 96 divisors (see below), whose sum is σ = 27433728. Its totient is φ = 3174912.

The previous prime is 10321211. The next prime is 10321229. The reversal of 10321220 is 2212301.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (10321211) and next prime (10321229).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10321229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 96407 + ... + 96513.

It is an arithmetic number, because the mean of its divisors is an integer number (285768).

Almost surely, 2^10321220 is an apocalyptic number.

10321220 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 10321220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13716864).

10321220 is an abundant number, since it is smaller than the sum of its proper divisors (17112508).

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

10321220 is a wasteful number, since it uses less digits than its factorization.

10321220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189 (or 187 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 10321220 is about 3212.6655599362. The cubic root of 10321220 is about 217.7260256576.

Adding to 10321220 its reverse (2212301), we get a palindrome (12533521).

The spelling of 10321220 in words is "ten million, three hundred twenty-one thousand, two hundred twenty".