20021011022 has 32 divisors (see below), whose sum is σ = 31621713984. Its totient is φ = 9494496000.

The previous prime is 20021011019. The next prime is 20021011033. The reversal of 20021011022 is 22011012002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20021010994 and 20021011012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5407772 + ... + 5411472.

It is an arithmetic number, because the mean of its divisors is an integer number (988178562).

Almost surely, 2^20021011022 is an apocalyptic number.

20021011022 is a deficient number, since it is larger than the sum of its proper divisors (11600702962).

20021011022 is a wasteful number, since it uses less digits than its factorization.

20021011022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5564.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20021011022 its reverse (22011012002), we get a palindrome (42032023024).

The spelling of 20021011022 in words is "twenty billion, twenty-one million, eleven thousand, twenty-two".