120122101222221 has 8 divisors (see below), whose sum is σ = 183043201862464. Its totient is φ = 68641200698400.

The previous prime is 120122101222217. The next prime is 120122101222223. The reversal of 120122101222221 is 122222101221021.

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

It is not a de Polignac number, because 120122101222221 - 2² = 120122101222217 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 5720100058201 = 120122101222221 / (1 + 2 + 0 + 1 + 2 + 2 + 1 + 0 + 1 + 2 + 2 + 2 + 2 + 2 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120122101222223) 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, 2860050029080 + ... + 2860050029121.

It is an arithmetic number, because the mean of its divisors is an integer number (22880400232808).

Almost surely, 2^{120122101222221} is an apocalyptic number.

It is an amenable number.

120122101222221 is a deficient number, since it is larger than the sum of its proper divisors (62921100640243).

120122101222221 is an equidigital number, since it uses as much as digits as its factorization.

120122101222221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5720100058211.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 120122101222221 its reverse (122222101221021), we get a palindrome (242344202443242).

The spelling of 120122101222221 in words is "one hundred twenty trillion, one hundred twenty-two billion, one hundred one million, two hundred twenty-two thousand, two hundred twenty-one".