12121144220399 has 8 divisors (see below), whose sum is σ = 12408201484800. Its totient is φ = 11834321964696.

The previous prime is 12121144220371. The next prime is 12121144220441. The reversal of 12121144220399 is 99302244112121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12121144220399 - 2¹² = 12121144216303 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 (12121144220309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58647797 + ... + 58854110.

It is an arithmetic number, because the mean of its divisors is an integer number (1551025185600).

Almost surely, 2^{12121144220399} is an apocalyptic number.

12121144220399 is a deficient number, since it is larger than the sum of its proper divisors (287057264401).

12121144220399 is a wasteful number, since it uses less digits than its factorization.

12121144220399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117504349.

The product of its (nonzero) digits is 62208, while the sum is 41.

The spelling of 12121144220399 in words is "twelve trillion, one hundred twenty-one billion, one hundred forty-four million, two hundred twenty thousand, three hundred ninety-nine".