20022182 has 4 divisors (see below), whose sum is σ = 30033276. Its totient is φ = 10011090.

The previous prime is 20022179. The next prime is 20022193. The reversal of 20022182 is 28122002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28122002 = 2 ⋅14061001.

It is a super-2 number, since 2×20022182² = 801775544082248, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20022182.

It is a congruent number.

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, 5005544 + ... + 5005547.

It is an arithmetic number, because the mean of its divisors is an integer number (7508319).

Almost surely, 2^20022182 is an apocalyptic number.

20022182 is a deficient number, since it is larger than the sum of its proper divisors (10011094).

20022182 is a wasteful number, since it uses less digits than its factorization.

20022182 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10011093.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 20022182 is about 4474.6152907261. The cubic root of 20022182 is about 271.5420766015.

Adding to 20022182 its reverse (28122002), we get a palindrome (48144184).

The spelling of 20022182 in words is "twenty million, twenty-two thousand, one hundred eighty-two".