10113021220 has 24 divisors (see below), whose sum is σ = 21731238144. Its totient is φ = 3951133536.

The previous prime is 10113021209. The next prime is 10113021253. The reversal of 10113021220 is 2212031101.

It is a self number, because there is not a number n which added to its sum of digits gives 10113021220.

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, 5878804 + ... + 5880523.

It is an arithmetic number, because the mean of its divisors is an integer number (905468256).

Almost surely, 2^10113021220 is an apocalyptic number.

10113021220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10113021220 is an abundant number, since it is smaller than the sum of its proper divisors (11618216924).

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

10113021220 is a wasteful number, since it uses less digits than its factorization.

10113021220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11759379 (or 11759377 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 10113021220 its reverse (2212031101), we get a palindrome (12325052321).

The spelling of 10113021220 in words is "ten billion, one hundred thirteen million, twenty-one thousand, two hundred twenty".