100331222120 has 32 divisors (see below), whose sum is σ = 226415147400. Its totient is φ = 40013395968.

The previous prime is 100331222093. The next prime is 100331222207. The reversal of 100331222120 is 21222133001.

It can be written as a sum of positive squares in 4 ways, for example, as 60434355556 + 39896866564 = 245834^2 + 199742^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3708005 + ... + 3734964.

Almost surely, 2^100331222120 is an apocalyptic number.

100331222120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100331222120 is an abundant number, since it is smaller than the sum of its proper divisors (126083925280).

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

100331222120 is a wasteful number, since it uses less digits than its factorization.

100331222120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7443317 (or 7443313 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 100331222120 its reverse (21222133001), we get a palindrome (121553355121).

The spelling of 100331222120 in words is "one hundred billion, three hundred thirty-one million, two hundred twenty-two thousand, one hundred twenty".