122321121 has 16 divisors (see below), whose sum is σ = 176534400. Its totient is φ = 74891520.

The previous prime is 122321117. The next prime is 122321123. The reversal of 122321121 is 121123221.

It is not a de Polignac number, because 122321121 - 2² = 122321117 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 122321121.

It is not an unprimeable number, because it can be changed into a prime (122321123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120 + ... + 15641.

It is an arithmetic number, because the mean of its divisors is an integer number (11033400).

Almost surely, 2^122321121 is an apocalyptic number.

It is an amenable number.

122321121 is a deficient number, since it is larger than the sum of its proper divisors (54213279).

122321121 is a wasteful number, since it uses less digits than its factorization.

122321121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15976.

The product of its digits is 48, while the sum is 15.

The square root of 122321121 is about 11059.8879289078. The cubic root of 122321121 is about 496.4023370630.

Adding to 122321121 its reverse (121123221), we get a palindrome (243444342).

It can be divided in two parts, 122321 and 121, that multiplied together give a palindrome (14800841).

The spelling of 122321121 in words is "one hundred twenty-two million, three hundred twenty-one thousand, one hundred twenty-one".