100331222221 has 8 divisors (see below), whose sum is σ = 103141511424. Its totient is φ = 97538227680.

The previous prime is 100331222207. The next prime is 100331222263. The reversal of 100331222221 is 122222133001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 100331222221 - 2⁷ = 100331222093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100331225221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4311901 + ... + 4335106.

It is an arithmetic number, because the mean of its divisors is an integer number (12892688928).

Almost surely, 2^100331222221 is an apocalyptic number.

It is an amenable number.

100331222221 is a deficient number, since it is larger than the sum of its proper divisors (2810289203).

100331222221 is an equidigital number, since it uses as much as digits as its factorization.

100331222221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8647331.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 100331222221 its reverse (122222133001), we get a palindrome (222553355222).

The spelling of 100331222221 in words is "one hundred billion, three hundred thirty-one million, two hundred twenty-two thousand, two hundred twenty-one".