121212403411 has 8 divisors (see below), whose sum is σ = 135805543344. Its totient is φ = 107214901920.

The previous prime is 121212403327. The next prime is 121212403423. The reversal of 121212403411 is 114304212121.

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 121212403411 - 2¹³ = 121212395219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121212443411) 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, 148909180 + ... + 148909993.

It is an arithmetic number, because the mean of its divisors is an integer number (16975692918).

Almost surely, 2^121212403411 is an apocalyptic number.

121212403411 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

121212403411 is a deficient number, since it is larger than the sum of its proper divisors (14593139933).

121212403411 is a wasteful number, since it uses less digits than its factorization.

121212403411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297819221.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 121212403411 its reverse (114304212121), we get a palindrome (235516615532).

The spelling of 121212403411 in words is "one hundred twenty-one billion, two hundred twelve million, four hundred three thousand, four hundred eleven".