20169122 has 4 divisors (see below), whose sum is σ = 30253686. Its totient is φ = 10084560.

The previous prime is 20169109. The next prime is 20169133. The reversal of 20169122 is 22196102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 18653761 + 1515361 = 4319^2 + 1231^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 5042279 + ... + 5042282.

Almost surely, 2^20169122 is an apocalyptic number.

20169122 is a deficient number, since it is larger than the sum of its proper divisors (10084564).

20169122 is a wasteful number, since it uses less digits than its factorization.

20169122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10084563.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 20169122 is about 4491.0045646826. The cubic root of 20169122 is about 272.2047280041.

The spelling of 20169122 in words is "twenty million, one hundred sixty-nine thousand, one hundred twenty-two".