20622122 has 16 divisors (see below), whose sum is σ = 34178112. Its totient is φ = 9282240.

The previous prime is 20622109. The next prime is 20622149. The reversal of 20622122 is 22122602.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 20622122.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 12404 + ... + 13967.

It is an arithmetic number, because the mean of its divisors is an integer number (2136132).

Almost surely, 2^20622122 is an apocalyptic number.

20622122 is a deficient number, since it is larger than the sum of its proper divisors (13555990).

20622122 is a wasteful number, since it uses less digits than its factorization.

20622122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26413.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 20622122 is about 4541.1586627203. The cubic root of 20622122 is about 274.2275712519.

Adding to 20622122 its reverse (22122602), we get a palindrome (42744724).

The spelling of 20622122 in words is "twenty million, six hundred twenty-two thousand, one hundred twenty-two".