322220121 has 16 divisors (see below), whose sum is σ = 435297024. Its totient is φ = 211994064.

The previous prime is 322220111. The next prime is 322220123. The reversal of 322220121 is 121022223.

It is a happy number.

It is not a de Polignac number, because 322220121 - 2⁵ = 322220089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 322220121.

It is not an unprimeable number, because it can be changed into a prime (322220123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89070 + ... + 92616.

It is an arithmetic number, because the mean of its divisors is an integer number (27206064).

Almost surely, 2^322220121 is an apocalyptic number.

It is an amenable number.

322220121 is a deficient number, since it is larger than the sum of its proper divisors (113076903).

322220121 is a wasteful number, since it uses less digits than its factorization.

322220121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3940.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 322220121 is about 17950.4908289439. The cubic root of 322220121 is about 685.5685485235.

Adding to 322220121 its reverse (121022223), we get a palindrome (443242344).

The spelling of 322220121 in words is "three hundred twenty-two million, two hundred twenty thousand, one hundred twenty-one".