121255321 has 8 divisors (see below), whose sum is σ = 139240800. Its totient is φ = 104430240.

The previous prime is 121255319. The next prime is 121255331. The reversal of 121255321 is 123552121.

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 121255321 - 2¹ = 121255319 is a prime.

It is a super-3 number, since 3×121255321³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121255292 and 121255301.

It is not an unprimeable number, because it can be changed into a prime (121255301) 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, 289876 + ... + 290293.

It is an arithmetic number, because the mean of its divisors is an integer number (17405100).

Almost surely, 2^121255321 is an apocalyptic number.

121255321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121255321 is a deficient number, since it is larger than the sum of its proper divisors (17985479).

121255321 is a wasteful number, since it uses less digits than its factorization.

121255321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580199.

The product of its digits is 600, while the sum is 22.

The square root of 121255321 is about 11011.5993842856. The cubic root of 121255321 is about 494.9563897233.

The spelling of 121255321 in words is "one hundred twenty-one million, two hundred fifty-five thousand, three hundred twenty-one".