10103221020 has 48 divisors (see below), whose sum is σ = 28319050368. Its totient is φ = 2691332160.

The previous prime is 10103220997. The next prime is 10103221027. The reversal of 10103221020 is 2012230101.

10103221020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 10103220987 and 10103221005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10103221027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32086 + ... + 145725.

It is an arithmetic number, because the mean of its divisors is an integer number (589980216).

Almost surely, 2^10103221020 is an apocalyptic number.

10103221020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10103221020 is an abundant number, since it is smaller than the sum of its proper divisors (18215829348).

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

10103221020 is a wasteful number, since it uses less digits than its factorization.

10103221020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178770 (or 178768 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 10103221020 its reverse (2012230101), we get a palindrome (12115451121).

The spelling of 10103221020 in words is "ten billion, one hundred three million, two hundred twenty-one thousand, twenty".