100421452220 has 12 divisors (see below), whose sum is σ = 210885049704. Its totient is φ = 40168580880.

The previous prime is 100421452171. The next prime is 100421452223. The reversal of 100421452220 is 22254124001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100421452223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2510536286 + ... + 2510536325.

It is an arithmetic number, because the mean of its divisors is an integer number (17573754142).

Almost surely, 2^100421452220 is an apocalyptic number.

100421452220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100421452220 is an abundant number, since it is smaller than the sum of its proper divisors (110463597484).

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

100421452220 is a wasteful number, since it uses less digits than its factorization.

100421452220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5021072620 (or 5021072618 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

Adding to 100421452220 its reverse (22254124001), we get a palindrome (122675576221).

The spelling of 100421452220 in words is "one hundred billion, four hundred twenty-one million, four hundred fifty-two thousand, two hundred twenty".