122120101221 has 4 divisors (see below), whose sum is σ = 162826801632. Its totient is φ = 81413400812.

The previous prime is 122120101219. The next prime is 122120101261. The reversal of 122120101221 is 122101021221.

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 122120101221 - 2¹ = 122120101219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122120101221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122120101261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20353350201 + ... + 20353350206.

It is an arithmetic number, because the mean of its divisors is an integer number (40706700408).

Almost surely, 2^122120101221 is an apocalyptic number.

It is an amenable number.

122120101221 is a deficient number, since it is larger than the sum of its proper divisors (40706700411).

122120101221 is an equidigital number, since it uses as much as digits as its factorization.

122120101221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40706700410.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 122120101221 its reverse (122101021221), we get a palindrome (244221122442).

The spelling of 122120101221 in words is "one hundred twenty-two billion, one hundred twenty million, one hundred one thousand, two hundred twenty-one".