20010022 has 4 divisors (see below), whose sum is σ = 30015036. Its totient is φ = 10005010.

The previous prime is 20010017. The next prime is 20010041. The reversal of 20010022 is 22001002.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 20009987 and 20010014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5002504 + ... + 5002507.

It is an arithmetic number, because the mean of its divisors is an integer number (7503759).

Almost surely, 2^20010022 is an apocalyptic number.

20010022 is a deficient number, since it is larger than the sum of its proper divisors (10005014).

20010022 is a wasteful number, since it uses less digits than its factorization.

20010022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10005013.

The product of its (nonzero) digits is 8, while the sum is 7.

The square root of 20010022 is about 4473.2563083284. The cubic root of 20010022 is about 271.4870939106.

Adding to 20010022 its reverse (22001002), we get a palindrome (42011024).

It can be divided in two parts, 2001002 and 2, that multiplied together give a palindrome (4002004).

The spelling of 20010022 in words is "twenty million, ten thousand, twenty-two".