121244224321 has 8 divisors (see below), whose sum is σ = 133859998944. Its totient is φ = 108894045120.

The previous prime is 121244224319. The next prime is 121244224357. The reversal of 121244224321 is 123422442121.

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 121244224321 - 2¹ = 121244224319 is a prime.

It is a super-3 number, since 3×121244224321³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 121244224321.

It is not an unprimeable number, because it can be changed into a prime (121244224021) 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, 66397896 + ... + 66399721.

It is an arithmetic number, because the mean of its divisors is an integer number (16732499868).

Almost surely, 2^121244224321 is an apocalyptic number.

121244224321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121244224321 is a deficient number, since it is larger than the sum of its proper divisors (12615774623).

121244224321 is a wasteful number, since it uses less digits than its factorization.

121244224321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132797711.

The product of its digits is 6144, while the sum is 28.

Adding to 121244224321 its reverse (123422442121), we get a palindrome (244666666442).

The spelling of 121244224321 in words is "one hundred twenty-one billion, two hundred forty-four million, two hundred twenty-four thousand, three hundred twenty-one".