120100312221 has 4 divisors (see below), whose sum is σ = 160133749632. Its totient is φ = 80066874812.

The previous prime is 120100312207. The next prime is 120100312223. The reversal of 120100312221 is 122213001021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 120100312221 - 2²³ = 120091923613 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120100312221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120100312223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20016718701 + ... + 20016718706.

It is an arithmetic number, because the mean of its divisors is an integer number (40033437408).

Almost surely, 2^120100312221 is an apocalyptic number.

It is an amenable number.

120100312221 is a deficient number, since it is larger than the sum of its proper divisors (40033437411).

120100312221 is an equidigital number, since it uses as much as digits as its factorization.

120100312221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40033437410.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 120100312221 its reverse (122213001021), we get a palindrome (242313313242).

The spelling of 120100312221 in words is "one hundred twenty billion, one hundred million, three hundred twelve thousand, two hundred twenty-one".