121304222101 has 4 divisors (see below), whose sum is σ = 121304991852. Its totient is φ = 121303452352.

The previous prime is 121304222089. The next prime is 121304222131. The reversal of 121304222101 is 101222403121.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 84160911025 + 37143311076 = 290105^2 + 192726^2 .

It is a cyclic number.

It is not a de Polignac number, because 121304222101 - 2²⁹ = 120767351189 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 (121304222131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53236 + ... + 495421.

It is an arithmetic number, because the mean of its divisors is an integer number (30326247963).

Almost surely, 2^121304222101 is an apocalyptic number.

It is an amenable number.

121304222101 is a deficient number, since it is larger than the sum of its proper divisors (769751).

121304222101 is an equidigital number, since it uses as much as digits as its factorization.

121304222101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769750.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 121304222101 its reverse (101222403121), we get a palindrome (222526625222).

The spelling of 121304222101 in words is "one hundred twenty-one billion, three hundred four million, two hundred twenty-two thousand, one hundred one".