121322045213 has 4 divisors (see below), whose sum is σ = 126596916768. Its totient is φ = 116047173660.

The previous prime is 121322045197. The next prime is 121322045239. The reversal of 121322045213 is 312540223121.

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, and also an emirpimes, since its reverse is a distinct semiprime: 312540223121 = 7 ⋅44648603303.

It is a cyclic number.

It is not a de Polignac number, because 121322045213 - 2⁴ = 121322045197 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 (121322041213) 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, 2637435743 + ... + 2637435788.

It is an arithmetic number, because the mean of its divisors is an integer number (31649229192).

Almost surely, 2^121322045213 is an apocalyptic number.

It is an amenable number.

121322045213 is a deficient number, since it is larger than the sum of its proper divisors (5274871555).

121322045213 is an equidigital number, since it uses as much as digits as its factorization.

121322045213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5274871554.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 121322045213 its reverse (312540223121), we get a palindrome (433862268334).

The spelling of 121322045213 in words is "one hundred twenty-one billion, three hundred twenty-two million, forty-five thousand, two hundred thirteen".