122031321 has 32 divisors (see below), whose sum is σ = 177666048. Its totient is φ = 74215680.

The previous prime is 122031271. The next prime is 122031323. The reversal of 122031321 is 123130221.

It is not a de Polignac number, because 122031321 - 2⁶ = 122031257 is a prime.

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 122031321.

It is not an unprimeable number, because it can be changed into a prime (122031323) 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 31 ways as a sum of consecutive naturals, for example, 242356 + ... + 242858.

It is an arithmetic number, because the mean of its divisors is an integer number (5552064).

Almost surely, 2^122031321 is an apocalyptic number.

It is an amenable number.

122031321 is a deficient number, since it is larger than the sum of its proper divisors (55634727).

122031321 is a wasteful number, since it uses less digits than its factorization.

122031321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 122031321 is about 11046.7787612498. The cubic root of 122031321 is about 496.0100059224.

Adding to 122031321 its reverse (123130221), we get a palindrome (245161542).

The spelling of 122031321 in words is "one hundred twenty-two million, thirty-one thousand, three hundred twenty-one".