168121322 has 8 divisors (see below), whose sum is σ = 255374400. Its totient is φ = 82996524.

The previous prime is 168121321. The next prime is 168121379. The reversal of 168121322 is 223121861.

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

It is a super-2 number, since 2×168121322² = 56529557822055368, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 168121291 and 168121300.

It is not an unprimeable number, because it can be changed into a prime (168121321) 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 3 ways as a sum of consecutive naturals, for example, 531872 + ... + 532187.

It is an arithmetic number, because the mean of its divisors is an integer number (31921800).

Almost surely, 2^168121322 is an apocalyptic number.

168121322 is a deficient number, since it is larger than the sum of its proper divisors (87253078).

168121322 is a wasteful number, since it uses less digits than its factorization.

168121322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1064140.

The product of its digits is 1152, while the sum is 26.

The square root of 168121322 is about 12966.1606499380. The cubic root of 168121322 is about 551.9176279978.

The spelling of 168121322 in words is "one hundred sixty-eight million, one hundred twenty-one thousand, three hundred twenty-two".