10103221220 has 24 divisors (see below), whose sum is σ = 21242088000. Its totient is φ = 4036464992.

The previous prime is 10103221217. The next prime is 10103221267. The reversal of 10103221220 is 2212230101.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 10103221195 and 10103221204.

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, 284270 + ... + 317829.

It is an arithmetic number, because the mean of its divisors is an integer number (885087000).

Almost surely, 2^10103221220 is an apocalyptic number.

10103221220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10103221220 is an abundant number, since it is smaller than the sum of its proper divisors (11138866780).

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

10103221220 is a wasteful number, since it uses less digits than its factorization.

10103221220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602947 (or 602945 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 10103221220 its reverse (2212230101), we get a palindrome (12315451321).

The spelling of 10103221220 in words is "ten billion, one hundred three million, two hundred twenty-one thousand, two hundred twenty".