20022130 has 16 divisors (see below), whose sum is σ = 36149400. Its totient is φ = 7984512.

The previous prime is 20022127. The next prime is 20022137. The reversal of 20022130 is 3122002.

It can be written as a sum of positive squares in 4 ways, for example, as 11950849 + 8071281 = 3457^2 + 2841^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (20022137) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 622 + ... + 6358.

Almost surely, 2^20022130 is an apocalyptic number.

20022130 is a deficient number, since it is larger than the sum of its proper divisors (16127270).

20022130 is a wasteful number, since it uses less digits than its factorization.

20022130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6093.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 20022130 is about 4474.6094801670. The cubic root of 20022130 is about 271.5418415255.

Adding to 20022130 its reverse (3122002), we get a palindrome (23144132).

The spelling of 20022130 in words is "twenty million, twenty-two thousand, one hundred thirty".