20168122 has 12 divisors (see below), whose sum is σ = 32758830. Its totient is φ = 9308208.

The previous prime is 20168119. The next prime is 20168129. The reversal of 20168122 is 22186102.

It can be written as a sum of positive squares in 3 ways, for example, as 13402921 + 6765201 = 3661^2 + 2601^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20168093 and 20168102.

It is not an unprimeable number, because it can be changed into a prime (20168129) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 29497 + ... + 30172.

Almost surely, 2^20168122 is an apocalyptic number.

20168122 is a deficient number, since it is larger than the sum of its proper divisors (12590708).

20168122 is a wasteful number, since it uses less digits than its factorization.

20168122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59697 (or 59684 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 20168122 is about 4490.8932296371. The cubic root of 20168122 is about 272.2002292257.

The spelling of 20168122 in words is "twenty million, one hundred sixty-eight thousand, one hundred twenty-two".