10120403220 has 96 divisors (see below), whose sum is σ = 29276405760. Its totient is φ = 2609470080.

The previous prime is 10120403201. The next prime is 10120403221. The reversal of 10120403220 is 2230402101.

It is a super-2 number, since 2×10120403220² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 10120403220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10120403221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3984711 + ... + 3987249.

It is an arithmetic number, because the mean of its divisors is an integer number (304962560).

Almost surely, 2^10120403220 is an apocalyptic number.

10120403220 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 10120403220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14638202880).

10120403220 is an abundant number, since it is smaller than the sum of its proper divisors (19156002540).

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

10120403220 is a wasteful number, since it uses less digits than its factorization.

10120403220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4725 (or 4723 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 10120403220 its reverse (2230402101), we get a palindrome (12350805321).

The spelling of 10120403220 in words is "ten billion, one hundred twenty million, four hundred three thousand, two hundred twenty".