121302210122 has 4 divisors (see below), whose sum is σ = 181953315186. Its totient is φ = 60651105060.

The previous prime is 121302210067. The next prime is 121302210179. The reversal of 121302210122 is 221012203121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 221012203121 = 441619 ⋅500459.

It can be written as a sum of positive squares in only one way, i.e., 80696333041 + 40605877081 = 284071^2 + 201509^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 121302210122.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 30325552529 + ... + 30325552532.

Almost surely, 2^121302210122 is an apocalyptic number.

121302210122 is a deficient number, since it is larger than the sum of its proper divisors (60651105064).

121302210122 is an equidigital number, since it uses as much as digits as its factorization.

121302210122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60651105063.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 121302210122 its reverse (221012203121), we get a palindrome (342314413243).

The spelling of 121302210122 in words is "one hundred twenty-one billion, three hundred two million, two hundred ten thousand, one hundred twenty-two".