921612323122 has 8 divisors (see below), whose sum is σ = 1383281961372. Its totient is φ = 460518336000.

The previous prime is 921612323083. The next prime is 921612323123. The reversal of 921612323122 is 221323216129.

It can be written as a sum of positive squares in 2 ways, for example, as 886781939481 + 34830383641 = 941691^2 + 186629^2 .

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

It is not an unprimeable number, because it can be changed into a prime (921612323123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143908779 + ... + 143915182.

Almost surely, 2^921612323122 is an apocalyptic number.

921612323122 is a deficient number, since it is larger than the sum of its proper divisors (461669638250).

921612323122 is a wasteful number, since it uses less digits than its factorization.

921612323122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287825564.

The product of its digits is 15552, while the sum is 34.

The spelling of 921612323122 in words is "nine hundred twenty-one billion, six hundred twelve million, three hundred twenty-three thousand, one hundred twenty-two".