121301223221 has 8 divisors (see below), whose sum is σ = 126667411200. Its totient is φ = 115942720432.

The previous prime is 121301223191. The next prime is 121301223227. The reversal of 121301223221 is 122322103121.

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 121301223221 - 2³⁰ = 120227481397 is a prime.

It is a super-2 number, since 2×121301223221² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121301223193 and 121301223202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121301223227) 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, 1889021 + ... + 1952178.

It is an arithmetic number, because the mean of its divisors is an integer number (15833426400).

Almost surely, 2^121301223221 is an apocalyptic number.

It is an amenable number.

121301223221 is a deficient number, since it is larger than the sum of its proper divisors (5366187979).

121301223221 is a wasteful number, since it uses less digits than its factorization.

121301223221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3842595.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 121301223221 its reverse (122322103121), we get a palindrome (243623326342).

The spelling of 121301223221 in words is "one hundred twenty-one billion, three hundred one million, two hundred twenty-three thousand, two hundred twenty-one".