10120220 has 48 divisors (see below), whose sum is σ = 23411808. Its totient is φ = 3644160.

The previous prime is 10120213. The next prime is 10120237. The reversal of 10120220 is 2202101.

It is a junction number, because it is equal to n+sod(n) for n = 10120198 and 10120207.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34394 + ... + 34686.

It is an arithmetic number, because the mean of its divisors is an integer number (487746).

Almost surely, 2^10120220 is an apocalyptic number.

10120220 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 10120220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11705904).

10120220 is an abundant number, since it is smaller than the sum of its proper divisors (13291588).

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

10120220 is a wasteful number, since it uses less digits than its factorization.

10120220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470 (or 468 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 10120220 is about 3181.2293221332. The cubic root of 10120220 is about 216.3033859752.

Adding to 10120220 its reverse (2202101), we get a palindrome (12322321).

The spelling of 10120220 in words is "ten million, one hundred twenty thousand, two hundred twenty".