122001 has 8 divisors (see below), whose sum is σ = 177504. Its totient is φ = 73920.

The previous prime is 121997. The next prime is 122011. The reversal of 122001 is 100221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 122001 - 2² = 121997 is a prime.

It is a Curzon number.

122001 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (122011) 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, 1816 + ... + 1881.

It is an arithmetic number, because the mean of its divisors is an integer number (22188).

2¹²²⁰⁰¹ is an apocalyptic number.

122001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

122001 is a deficient number, since it is larger than the sum of its proper divisors (55503).

122001 is a wasteful number, since it uses less digits than its factorization.

122001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3711.

The product of its (nonzero) digits is 4, while the sum is 6.

The square root of 122001 is about 349.2864154244. The cubic root of 122001 is about 49.5968921483.

Adding to 122001 its reverse (100221), we get a palindrome (222222).

The spelling of 122001 in words is "one hundred twenty-two thousand, one", and thus it is an iban number.