121212301121 has 8 divisors (see below), whose sum is σ = 122039736000. Its totient is φ = 120385191600.

The previous prime is 121212301043. The next prime is 121212301163. The reversal of 121212301121 is 121103212121.

It is a happy number.

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 121212301121 - 2²⁶ = 121145192257 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121212301121.

It is not an unprimeable number, because it can be changed into a prime (121212321121) 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, 691235 + ... + 848663.

It is an arithmetic number, because the mean of its divisors is an integer number (15254967000).

Almost surely, 2^121212301121 is an apocalyptic number.

It is an amenable number.

121212301121 is a deficient number, since it is larger than the sum of its proper divisors (827434879).

121212301121 is a wasteful number, since it uses less digits than its factorization.

121212301121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162679.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 121212301121 its reverse (121103212121), we get a palindrome (242315513242).

The spelling of 121212301121 in words is "one hundred twenty-one billion, two hundred twelve million, three hundred one thousand, one hundred twenty-one".