20071022 has 8 divisors (see below), whose sum is σ = 30143496. Its totient is φ = 10023192.

The previous prime is 20070997. The next prime is 20071027. The reversal of 20071022 is 22017002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 20070988 and 20071006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20071027) 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 3 ways as a sum of consecutive naturals, for example, 3968 + ... + 7475.

It is an arithmetic number, because the mean of its divisors is an integer number (3767937).

Almost surely, 2^20071022 is an apocalyptic number.

20071022 is a deficient number, since it is larger than the sum of its proper divisors (10072474).

20071022 is a wasteful number, since it uses less digits than its factorization.

20071022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12322.

The product of its (nonzero) digits is 56, while the sum is 14.

The square root of 20071022 is about 4480.0694191050. The cubic root of 20071022 is about 271.7626876919.

Adding to 20071022 its reverse (22017002), we get a palindrome (42088024).

The spelling of 20071022 in words is "twenty million, seventy-one thousand, twenty-two".