121322005 has 8 divisors (see below), whose sum is σ = 166384512. Its totient is φ = 83192208.

The previous prime is 121321999. The next prime is 121322021. The reversal of 121322005 is 500223121.

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 121322005 - 2⁹ = 121321493 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121322005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1733137 + ... + 1733206.

It is an arithmetic number, because the mean of its divisors is an integer number (20798064).

Almost surely, 2^121322005 is an apocalyptic number.

It is an amenable number.

121322005 is a deficient number, since it is larger than the sum of its proper divisors (45062507).

121322005 is an equidigital number, since it uses as much as digits as its factorization.

121322005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3466355.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 121322005 is about 11014.6268661267. The cubic root of 121322005 is about 495.0471063560.

Adding to 121322005 its reverse (500223121), we get a palindrome (621545126).

The spelling of 121322005 in words is "one hundred twenty-one million, three hundred twenty-two thousand, five".