10203221100 has 36 divisors (see below), whose sum is σ = 29521320584. Its totient is φ = 2720858880.

The previous prime is 10203221099. The next prime is 10203221101. The reversal of 10203221100 is 112230201.

It is an interprime number because it is at equal distance from previous prime (10203221099) and next prime (10203221101).

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

It is not an unprimeable number, because it can be changed into a prime (10203221101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17005069 + ... + 17005668.

Almost surely, 2^10203221100 is an apocalyptic number.

10203221100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10203221100 is an abundant number, since it is smaller than the sum of its proper divisors (19318099484).

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

10203221100 is a wasteful number, since it uses less digits than its factorization.

10203221100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34010754 (or 34010747 counting only the distinct ones).

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

Adding to 10203221100 its reverse (112230201), we get a palindrome (10315451301).

The spelling of 10203221100 in words is "ten billion, two hundred three million, two hundred twenty-one thousand, one hundred".