121121242222303 has 4 divisors (see below), whose sum is σ = 121121818890048. Its totient is φ = 121120665554560.

The previous prime is 121121242222243. The next prime is 121121242222307. The reversal of 121121242222303 is 303222242121121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121121242222303 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 (121121242222307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 288018703 + ... + 288438928.

It is an arithmetic number, because the mean of its divisors is an integer number (30280454722512).

Almost surely, 2^{121121242222303} is an apocalyptic number.

121121242222303 is a deficient number, since it is larger than the sum of its proper divisors (576667745).

121121242222303 is an equidigital number, since it uses as much as digits as its factorization.

121121242222303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576667744.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 121121242222303 its reverse (303222242121121), we get a palindrome (424343484343424).

The spelling of 121121242222303 in words is "one hundred twenty-one trillion, one hundred twenty-one billion, two hundred forty-two million, two hundred twenty-two thousand, three hundred three".