321012122 has 16 divisors (see below), whose sum is σ = 510238440. Its totient is φ = 150947328.

The previous prime is 321012121. The next prime is 321012137. The reversal of 321012122 is 221210123.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 257634601 + 63377521 = 16051^2 + 7961^2 .

It is a junction number, because it is equal to n+sod(n) for n = 321012097 and 321012106.

It is not an unprimeable number, because it can be changed into a prime (321012121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53918 + ... + 59574.

Almost surely, 2^321012122 is an apocalyptic number.

321012122 is a deficient number, since it is larger than the sum of its proper divisors (189226318).

321012122 is a wasteful number, since it uses less digits than its factorization.

321012122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7345.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 321012122 is about 17916.8111560065. The cubic root of 321012122 is about 684.7107465056.

Adding to 321012122 its reverse (221210123), we get a palindrome (542222245).

The spelling of 321012122 in words is "three hundred twenty-one million, twelve thousand, one hundred twenty-two".