100230221220 has 24 divisors (see below), whose sum is σ = 280644619584. Its totient is φ = 26728058976.

The previous prime is 100230221209. The next prime is 100230221269. The reversal of 100230221220 is 22122032001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 100230221220.

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, 835251784 + ... + 835251903.

It is an arithmetic number, because the mean of its divisors is an integer number (11693525816).

Almost surely, 2^100230221220 is an apocalyptic number.

100230221220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100230221220 is an abundant number, since it is smaller than the sum of its proper divisors (180414398364).

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

100230221220 is a wasteful number, since it uses less digits than its factorization.

100230221220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1670503699 (or 1670503697 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 100230221220 its reverse (22122032001), we get a palindrome (122352253221).

The spelling of 100230221220 in words is "one hundred billion, two hundred thirty million, two hundred twenty-one thousand, two hundred twenty".