100120122221 has 8 divisors (see below), whose sum is σ = 115190937600. Its totient is φ = 85241292048.

The previous prime is 100120122173. The next prime is 100120122227. The reversal of 100120122221 is 122221021001.

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 100120122221 - 2³⁴ = 82940253037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100120122196 and 100120122205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100120122227) 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, 47995181 + ... + 47997266.

It is an arithmetic number, because the mean of its divisors is an integer number (14398867200).

Almost surely, 2^100120122221 is an apocalyptic number.

It is an amenable number.

100120122221 is a deficient number, since it is larger than the sum of its proper divisors (15070815379).

100120122221 is an equidigital number, since it uses as much as digits as its factorization.

100120122221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95992603.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 100120122221 its reverse (122221021001), we get a palindrome (222341143222).

The spelling of 100120122221 in words is "one hundred billion, one hundred twenty million, one hundred twenty-two thousand, two hundred twenty-one".