121321442122 has 4 divisors (see below), whose sum is σ = 181982163186. Its totient is φ = 60660721060.

The previous prime is 121321442101. The next prime is 121321442129. The reversal of 121321442122 is 221244123121.

121321442122 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 120715248481 + 606193641 = 347441^2 + 24621^2 .

It is not an unprimeable number, because it can be changed into a prime (121321442129) 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 as a sum of consecutive naturals, namely, 30330360529 + ... + 30330360532.

Almost surely, 2^121321442122 is an apocalyptic number.

121321442122 is a deficient number, since it is larger than the sum of its proper divisors (60660721064).

121321442122 is an equidigital number, since it uses as much as digits as its factorization.

121321442122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60660721063.

The product of its digits is 1536, while the sum is 25.

Adding to 121321442122 its reverse (221244123121), we get a palindrome (342565565243).

The spelling of 121321442122 in words is "one hundred twenty-one billion, three hundred twenty-one million, four hundred forty-two thousand, one hundred twenty-two".